Error on command

[FuchsXStudios]

Describe the bug
When I enter a random command of the plugin (for example /generators) there comes a error in the console and in the chat there only is the command.

To Reproduce
Steps to reproduce the behavior:

1. Type an command of GensPlus in the chat
2. See error in the console
3. See the command in the chat

Config

# Specify the time after which the item will despawn from the time it was spawned.
# The despawn time can be specified in the following format variations:
# - "1h" for 1 hour
# - "5m" for 5 minutes
# - "1h 5m" for 1 hour and 5 minutes
# - "1h 5m 5s" for 1 hour and 5 minutes 5 seconds
item-despawn-time: "5m"

# If set to false, players will not be able to place generator drops.
# If player places generator drop, it will lose all it
# values and will be turned into a normal block.
can-drops-be-placed: false

# If set to false, players will not be able to use generator drops or
# generator blocks in crafting recipes.
can-drops-be-used-in-crafting: false

# If set to false, players will not be able to use generator drops or
# generator blocks for smelting.
can-items-be-used-in-smelting: false

# If set to false, players will not be able to use generator drops or
# generator blocks in enchanting.
can-drops-be-used-in-enchanting: false

# If set to true, generators will not spawn drops when
# the owner of the generator is offline.
disable-generators-when-offline: true

# Each world listed here will have generators disabled.
# If empty, all worlds will have generators enabled.
disabled-worlds: []

# Should we give a generator instantly to players inventory
# when they break a generator? If set to false, the generator
# will be dropped on the ground.
instant-pickup: false

on-join:
  # If enabled is set to false, when player joins, he will not receive
  # the generator.
  enabled: true

  # What tier of generator should player be given on join.
  generator-tier: 1

  # How many generators should player be given on join.
  generator-amount: 3

sell-command:
  # If enabled is set to false, the command will not be registered.
  enabled: true

  # The command that will be used to sell all drops in inventory.
  aliases:
    - "sellall"

limits:
  # Per-player generator limits
  per-player:
    # If enabled is set to false, the limit will not be checked.
    enabled: false

    # Should we use permissions for generator limit?
    # If set to true, you will be able to set specific
    # limits for each player. [gensplus.limit.<amount>]
    # (ex: gensplus.limit.20)
    use-permissions: false

    # [OVERRIDES USE-PERMISSIONS]
    # Should we use commands for generator limit?
    # If set to true, you can set specific limits for each player
    # by using the command /gensplus setlimit <player> <limit>
    # (ex: /gensplus setlimit Notch 20).
    use-commands: true

    # The default generator limit for all players
    default-limit: 20

    # The placeholder that will be used in the limit placeholder
    # if the limit-settings.enabled is set to false.
    unlimited-placeholder: "unlimited"

  # Per island generator limits. Supports IridiumSkyblock, SuperiorSkyblock,
  # and Bentobox (only with Bentobox Levels addon)
  per-island:
    enabled: false

    # How many generators should an island get per level.
    # Format: "<startLevel>:<endLevel>:<amount>"
    # Example: "1:5:1" means that between levels 1 and 5, the island will get 1 generator.
    # Example: "6:10:2" means that between levels 6 and 10, the island will get 2 generators.
    gens-per-level:
      - "1:5:1"
      - "6:10:2"

# Radius defines in how many blocks around the generator the player
# needs to be in order for the generator to be active.
radius:
  # If not enabled, generators will always be active, even if
  # player is not in the chunk radius.
  enabled: true

  # Should we use permissions for chunk radius?
  # If set to true, you will be able to set specific
  # chunk radius for each player. [gensplus.radius.<amount>]
  # (ex: gensplus.radius.5)
  use-permissions: true

  # The default radius used if player has no permission
  # or if use-permission is set to false.
  default-radius: 50

multiplier:
  # Should we use permissions for multiplier?
  # If set to true, you will be able to set specific
  # multipliers for each player. [gensplus.sell.multiplier.<amount>]
  # (ex: gensplus.sell.multiplier.2)
  use-permissions: true

  # The default multiplier for all players
  default-multiplier: 1

wands:
  sell-wand:
    enabled: true

    # Action that will open the gui if enabled or upgrade the generator if upgrade gui
    # is disabled. Available actions (case sensitive!):
    # [LEFT_CLICK_BLOCK, RIGHT_CLICK_BLOCK]
    action: "RIGHT_CLICK_BLOCK"

    # If sneak-required is set to true, the player will need to sneak in order to
    # open the gui or upgrade the generator.
    sneak-required: true

    # The material of the sell wand
    material: "BLAZE_ROD"

    # The name of the sell wand
    name: "&e&lSell Wand"

    # Unlimited uses prefix (if "uses" in game is set to -1, it will be replaced with this prefix)
    unlimited-uses-prefix: "∞"

    # The lore of the sell wand
    lore:
      - ""
      - "&7Right click on a chest or a hopper to sell all drops!"
      - "&e⌈ &fUses: &a%uses%"
      - "&e⌊ &fMultiplier: &a%multiplier%"
      - ""

guis:
  # Gui to view generators by a command
  generators-gui:
    # If enabled is set to false, the command will not be registered.
    enabled: true

    # Title of the gui
    title: "Generators"

    # Number of rows in the gui
    rows: 6

    # The material of the buttons in the gui
    material:
      next-page: "ARROW"
      previous-page: "ARROW"
      close-button: "BARRIER"

    border:
      # If enabled is set to false, the border won't be displayed.
      enabled: true

      # Material of the border
      material: "WHITE_STAINED_GLASS_PANE"

      # Name of the border
      name: " "

  # Gui when upgrading generator
  upgrade-gui:
    # If enabled is set to false, upgrade gui will not be displayed
    # and the generator will be upgraded instantly by Shift + Right Click-ing.
    # on the generator.
    enabled: true

    # Action that will open the gui if enabled or upgrade the generator if upgrade gui
    # is disabled. Available actions (case sensitive!):
    # [LEFT_CLICK_BLOCK, RIGHT_CLICK_BLOCK]
    action: "RIGHT_CLICK_BLOCK"

    # If sneak-required is set to true, the player will need to sneak in order to
    # open the gui or upgrade the generator.
    sneak-required: true

    upgradeOne:
      first-line: "&e》 &nClick to upgrade generator!&e 《"
      # If lore is not specified, the default lore will be used.
      # The default lore can be specified in the following format:
      # - %tier%" equals to the generator's tier
      # - %speed%" is the generator's speed of spawning items
      # - %price%" is the price of generator
      # - %sellPrice%" is the sell price of generator drop
      # - %spawnItem%" equals to what item will generator spawn
      # - %blockType%" equals to block type of generator
      # - %nextTier% equals to the next tier of generator
      # - %nextSpeed% equals to the next speed of generator
      # - %nextPrice% equals to the next price of generator
      # - %nextSellPrice% equals to the next sell price of generator
      # - %nextSpawnItem% equals to the next spawn item of generator
      # - %nextBlockType% equals to the next block type of generator
      lore:
        - ""
        - "&fMoney: &a%money%"
        - "&fUpgrade Price: &a%upgradePrice%"
        - ""
        - "&eCurrent Details:"
        - "&e⌈ &fTier: &a%tier%"
        - "&eⅠ &fSpeed: &a%speed%"
        - "&eⅠ &fPrice: &a%price%"
        - "&e⌊ &fSell Price: &a%sellPrice%"
        - ""
        - "&eNext Details:"
        - "&e⌈ &fTier: &a%nextTier%"
        - "&eⅠ &fSpeed: &a%nextSpeed%"
        - "&eⅠ &fPrice: &a%nextPrice%"
        - "&e⌊ &fSell Price: &a%nextSellPrice%"
        - ""

    upgradeAll:
        first-line: "&e》 &nClick to upgrade all generators!&e 《"
        # If lore is not specified, the default lore will be used.
        # The default lore can be specified in the following format:
        # - %tier%" equals to the generator's tier
        # - %speed%" is the generator's speed of spawning items
        # - %price%" is the price of generator
        # - %sellPrice%" is the sell price of generator drop
        # - %spawnItem%" equals to what item will generator spawn
        # - %blockType%" equals to block type of generator
        # - %nextTier% equals to the next tier of generator
        # - %nextSpeed% equals to the next speed of generator
        # - %nextPrice% equals to the next price of generator
        # - %nextSellPrice% equals to the next sell price of generator
        # - %nextSpawnItem% equals to the next spawn item of generator
        # - %nextBlockType% equals to the next block type of generator
        lore:
            - ""
            - "&fMoney: &a%money%"
            - "&fUpgrade Price: &a%upgradePrice%"
            - ""
            - "&eCurrent Details:"
            - "&e⌈ &fTier: &a%tier%"
            - "&eⅠ &fSpeed: &a%speed%"
            - "&eⅠ &fPrice: &a%price%"
            - "&e⌊ &fSell Price: &a%sellPrice%"
            - ""
            - "&eNext Details:"
            - "&e⌈ &fTier: &a%nextTier%"
            - "&eⅠ &fSpeed: &a%nextSpeed%"
            - "&eⅠ &fPrice: &a%nextPrice%"
            - "&e⌊ &fSell Price: &a%nextSellPrice%"
            - ""

    # Title of the gui
    title: "Upgrade Generator"

    # Number of rows in the gui
    rows: 3

  sell-gui:
    # If enabled is set to false, the command will not be registered.
    enabled: true

    # Title of the gui
    title: "Sell Drops"

    # Number of rows in the gui
    rows: 3

holograms:
  # If enabled is set to false, holograms will not be shown
  enabled: false

  # The hologram view distance
  view-distance: 300

events:
  # time can be specified in the following format variations:
  # - "1h" for 1 hour
  # - "5m" for 5 minutes
  # - "1h 5m" for 1 hour and 5 minutes
  # - "1h 5m 5s" for 1 hour and 5 minutes and 5 seconds

  # Time duration between events
  time-between-events: "1h"

  # Duration of each event
  event-duration: "2m"

  broadcast:
    # If enabled is set to false, there will be no broadcast messages.
    enabled: true

  drop-event:
    # If enabled is set to false, the event will not be registered.
    enabled: true

    # Name of the drop event
    name: "Drop Event"

    # Multiplier for the event
    multiplier: 2

  sell-event:
    # If enabled is set to false, the event will not be registered.
    enabled: true

    # Name of the sell event
    name: "Sell Event"

    # Multiplier for the event
    multiplier: 2

  speed-event:
    # If enabled is set to false, the event will not be registered.
    enabled: true

    # Name of the speed event
    name: "Speed Event"

    # Multiplier for the event
    multiplier: 2

particles:
  # If enabled is set to false, particles will not be displayed upon upgrade.
  enabled: true

  # Type of the particle. Make sure to use particles
  # that are supported by your server version, otherwise,
  # the particles will not be displayed. You can find
  # all supported particles here:
  # https://hub.spigotmc.org/javadocs/spigot/org/bukkit/Particle.html
  type: "FIREWORKS_SPARK"

  # Sound that will be played upon upgrade.
  # You can find all supported sounds here:
  # https://github.com/dieterblancke/DonatorJoinPlus/blob/master/spigot/src/main/java/com/dbsoftwares/djp/spigot/utils/XSound.java
  sound: "ENTITY_FIREWORK_ROCKET_BLAST"

# If lore is not specified, the default lore will be used.
# The default lore can be specified in the following format:
# - %tier%" equals to the generator's tier
# - %speed%" is the generator's speed of spawning items
# - %price%" is the price of generator
# - %sellPrice%" is the sell price of generator drop
# - %spawnItem%" equals to what item will generator spawn
# - %blockType%" equals to block type of generator
default-lore:
  - "&7Place down to start generating items!"
  - ""
  - "&e&l⌈ &6Tier: &7%tier%"
  - "&e&lⅠ &6Speed: &7%speed%"
  - "&e&lⅠ &6Price: &a%price%"
  - "&e&l⌊ &6Sell Price: &a%sellPrice%"
  - ""
  - "&e&l⌈ &6Spawn Item: &7%spawnItem%"
  - "&e&l⌊ &6Block Type: &7%blockType%"

# If itemSpawnLore is not specified, the default item spawn lore will be used.
# The default item spawn lore can be specified in the following format:
# - %sellPrice%" is the sell price of the generator drop
default-item-spawn-lore:
  - "&7Type in chat &e/selldrops &6hand&8/&6all"
  - "&7to sell the drops for &e%sellPrice%"

# If hologramLines is not specified, the default hologram lines will be used.
# The default hologram lines can be specified in the following format:
# Lines that will be displayed above the generator
# Lines can be specified in the following format:
# %name% will be replaced with the name of the generator
# %tier% will be replaced with the tier of the generator
# %speed% will be replaced with the speed of the generator
# %spawnItem% will be replaced with the item that generator spawns
# %sellPrice% will be replaced with the sell price of the generator
default-hologram-lines:
  - "&a%name%"
  - "&7Tier: &a%tier%"
  - "&7Spawns each &a%speed% &7seconds &a%spawnItem%"
  - "&7Sells for &a%sellPrice%"

# generators represent the generators that will be added in the gui,
# name is the name of the generator
# tier is the tier of the generator (each generator must have a unique tier)
# price is the price of the generator
# sellPrice is the sell price of the generator drop
# speed is the speed of the generator (how often it will spawn items)
# spawnItem is the item that generator will spawn
# blockType is the block type of the generator
# lore is the lore of the generator (if not specified, the default lore will be used)
# itemSpawnLore is the lore of the generator drop (if not specified, the default item spawn lore will be used)
# hologramLines is the hologram lines of the generator (if not specified, the default hologram lines will be used)
# dropDisplayName is the display name of the generator drop
# instantBreak is whether the generator can be instantly broken by SHIT + RIGHT-clicking or not
generators:
  - name: "&e&lWheat Generator"
    tier: 1
    price: 1000.0
    sellPrice: 10.0
    speed: 20
    spawnItem: "WHEAT"
    blockType: "HAY_BLOCK"
    lore: []
    itemSpawnLore: []
    hologramLines:
      - "&e%name%"
      - "&7Tier: &e%tier%"
      - "&7Spawns each &e%speed% &7seconds &e%spawnItem%"
      - "&7Sells for &e%sellPrice%"
    dropDisplayName: "&e&lWheat Drop"
    instantBreak: false
  - name: "&a&lMelon Generator"
    tier: 2
    price: 2000.0
    sellPrice: 20.0
    speed: 20
    spawnItem: "MELON_SLICE"
    blockType: "MELON"
    lore: []
    itemSpawnLore: []
    hologramLines:
      - "&a%name%"
      - "&7Tier: &a%tier%"
      - "&7Spawns each &a%speed% &7seconds &a%spawnItem%"
      - "&7Sells for &a%sellPrice%"
    dropDisplayName: "&a&lMelon Drop"
    instantBreak: false
  - name: "&8&lCoal Generator"
    tier: 3
    price: 3000.0
    sellPrice: 25.0
    speed: 20
    spawnItem: "COAL"
    blockType: "COAL_ORE"
    lore: []
    itemSpawnLore: []
    hologramLines:
      - "&8%name%"
      - "&7Tier: &8%tier%"
      - "&7Spawns each &8%speed% &7seconds &8%spawnItem%"
      - "&7Sells for &8%sellPrice%"
    dropDisplayName: "&8&lCoal Drop"
    instantBreak: false
  - name: "&8&lCoal Block Generator"
    tier: 4
    price: 4000.0
    sellPrice: 50.0
    speed: 20
    spawnItem: "COAL_BLOCK"
    blockType: "COAL_BLOCK"
    lore: []
    itemSpawnLore: []
    hologramLines:
      - "&8%name%"
      - "&7Tier: &8%tier%"
      - "&7Spawns each &8%speed% &7seconds &8%spawnItem%"
      - "&7Sells for &8%sellPrice%"
    dropDisplayName: "&8&lCoal Block Drop"
    instantBreak: false
  - name: "&7&lIron Generator"
    tier: 5
    price: 5000.0
    sellPrice: 75.0
    speed: 20
    spawnItem: "IRON_INGOT"
    blockType: "IRON_ORE"
    lore: []
    itemSpawnLore: []
    hologramLines:
      - "&7%name%"
      - "&7Tier: &7%tier%"
      - "&7Spawns each &7%speed% &7seconds &7%spawnItem%"
      - "&7Sells for &7%sellPrice%"
    dropDisplayName: "&7&lIron Drop"
    instantBreak: false
  - name: "&7&lIron Block Generator"
    tier: 6
    price: 6000.0
    sellPrice: 100.0
    speed: 20
    spawnItem: "IRON_BLOCK"
    blockType: "IRON_BLOCK"
    lore: []
    itemSpawnLore: []
    hologramLines:
      - "&7%name%"
      - "&7Tier: &7%tier%"
      - "&7Spawns each &7%speed% &7seconds &7%spawnItem%"
      - "&7Sells for &7%sellPrice%"
    dropDisplayName: "&f&lIron Block Drop"
    instantBreak: false
  - name: "&6&lGold Generator"
    tier: 7
    price: 7000.0
    sellPrice: 150.0
    speed: 20
    spawnItem: "GOLD_INGOT"
    blockType: "GOLD_ORE"
    lore: []
    itemSpawnLore: []
    hologramLines:
      - "&6%name%"
      - "&7Tier: &6%tier%"
      - "&7Spawns each &6%speed% &7seconds &6%spawnItem%"
      - "&7Sells for &6%sellPrice%"
    dropDisplayName: "&6&lGold Drop"
    instantBreak: false
  - name: "&6&lGold Block Generator"
    tier: 8
    price: 8000.0
    sellPrice: 200.0
    speed: 20
    spawnItem: "GOLD_BLOCK"
    blockType: "GOLD_BLOCK"
    lore: []
    itemSpawnLore: []
    hologramLines:
      - "&6%name%"
      - "&7Tier: &6%tier%"
      - "&7Spawns each &6%speed% &7seconds &6%spawnItem%"
      - "&7Sells for &6%sellPrice%"
    dropDisplayName: "&6&lGold Block Drop"
    instantBreak: false
  - name: "&4&lRedstone Generator"
    tier: 9
    price: 9000.0
    sellPrice: 300.0
    speed: 20
    spawnItem: "REDSTONE"
    blockType: "REDSTONE_ORE"
    lore: []
    itemSpawnLore: []
    hologramLines:
      - "&4%name%"
      - "&7Tier: &4%tier%"
      - "&7Spawns each &4%speed% &7seconds &4%spawnItem%"
      - "&7Sells for &4%sellPrice%"
    dropDisplayName: "&4&lRedstone Drop"
    instantBreak: false
  - name: "&4&lRedstone Block Generator"
    tier: 10
    price: 10000.0
    sellPrice: 400.0
    speed: 20
    spawnItem: "REDSTONE_BLOCK"
    blockType: "REDSTONE_BLOCK"
    lore: []
    itemSpawnLore: []
    hologramLines:
      - "&4%name%"
      - "&7Tier: &4%tier%"
      - "&7Spawns each &4%speed% &7seconds &4%spawnItem%"
      - "&7Sells for &4%sellPrice%"
    dropDisplayName: "&4&lRedstone Block Drop"
    instantBreak: false
  - name: "&b&lLapis Generator"
    tier: 11
    price: 11000.0
    sellPrice: 500.0
    speed: 20
    spawnItem: "LAPIS_LAZULI"
    blockType: "LAPIS_ORE"
    lore: []
    itemSpawnLore: []
    hologramLines:
      - "&b%name%"
      - "&7Tier: &b%tier%"
      - "&7Spawns each &b%speed% &7seconds &b%spawnItem%"
      - "&7Sells for &b%sellPrice%"
    dropDisplayName: "&b&lLapis Drop"
    instantBreak: false
  - name: "&b&lLapis Block Generator"
    tier: 12
    price: 12000.0
    sellPrice: 600.0
    speed: 20
    spawnItem: "LAPIS_BLOCK"
    blockType: "LAPIS_BLOCK"
    lore: []
    itemSpawnLore: []
    hologramLines:
      - "&b%name%"
      - "&7Tier: &b%tier%"
      - "&7Spawns each &b%speed% &7seconds &b%spawnItem%"
      - "&7Sells for &b%sellPrice%"
    dropDisplayName: "&b&lLapis Block Drop"
    instantBreak: false
  - name: "&3&lDiamond Generator"
    tier: 13
    price: 13000.0
    sellPrice: 700.0
    speed: 20
    spawnItem: "DIAMOND"
    blockType: "DIAMOND_ORE"
    lore: []
    itemSpawnLore: []
    hologramLines:
      - "&3%name%"
      - "&7Tier: &3%tier%"
      - "&7Spawns each &3%speed% &7seconds &3%spawnItem%"
      - "&7Sells for &3%sellPrice%"
    dropDisplayName: "&3&lDiamond Drop"
    instantBreak: false
  - name: "&3&lDiamond Block Generator"
    tier: 14
    price: 14000.0
    sellPrice: 800.0
    speed: 20
    spawnItem: "DIAMOND_BLOCK"
    blockType: "DIAMOND_BLOCK"
    lore: []
    itemSpawnLore: []
    hologramLines:
      - "&3%name%"
      - "&7Tier: &3%tier%"
      - "&7Spawns each &3%speed% &7seconds &3%spawnItem%"
      - "&7Sells for &3%sellPrice%"
    dropDisplayName: "&3&lDiamond Block Drop"
    instantBreak: false
  - name: "&a&lEmerald Generator"
    tier: 15
    price: 15000.0
    sellPrice: 900.0
    speed: 20
    spawnItem: "EMERALD"
    blockType: "EMERALD_ORE"
    lore: []
    itemSpawnLore: []
    hologramLines:
      - "&a%name%"
      - "&7Tier: &a%tier%"
      - "&7Spawns each &a%speed% &7seconds &a%spawnItem%"
      - "&7Sells for &a%sellPrice%"
    dropDisplayName: "&a&lEmerald Drop"
    instantBreak: false
  - name: "&a&lEmerald Block Generator"
    tier: 16
    price: 16000.0
    sellPrice: 1000.0
    speed: 20
    spawnItem: "EMERALD_BLOCK"
    blockType: "EMERALD_BLOCK"
    lore: []
    itemSpawnLore: []
    hologramLines:
      - "&a%name%"
      - "&7Tier: &a%tier%"
      - "&7Spawns each &a%speed% &7seconds &a%spawnItem%"
      - "&7Sells for &a%sellPrice%"
    dropDisplayName: "&a&lEmerald Block Drop"
    instantBreak: false
  - name: "&d&lQuartz Generator"
    tier: 17
    price: 17000.0
    sellPrice: 1100.0
    speed: 20
    spawnItem: "QUARTZ"
    blockType: "NETHER_QUARTZ_ORE"
    lore: []
    itemSpawnLore: []
    hologramLines:
      - "&d%name%"
      - "&7Tier: &d%tier%"
      - "&7Spawns each &d%speed% &7seconds &d%spawnItem%"
      - "&7Sells for &d%sellPrice%"
    dropDisplayName: "&d&lQuartz Drop"
    instantBreak: false
  - name: "&d&lQuartz Block Generator"
    tier: 18
    price: 18000.0
    sellPrice: 1200.0
    speed: 20
    spawnItem: "QUARTZ_BLOCK"
    blockType: "QUARTZ_BLOCK"
    lore: []
    itemSpawnLore: []
    hologramLines:
      - "&d%name%"
      - "&7Tier: &d%tier%"
      - "&7Spawns each &d%speed% &7seconds &d%spawnItem%"
      - "&7Sells for &d%sellPrice%"
    dropDisplayName: "&d&lQuartz Block Drop"
    instantBreak: false
  - name: "&f&lNetherite Scrap Generator"
    tier: 19
    price: 19000.0
    sellPrice: 1300.0
    speed: 20
    spawnItem: "NETHERITE_SCRAP"
    blockType: "ANCIENT_DEBRIS"
    lore: []
    itemSpawnLore: []
    hologramLines:
      - "&f%name%"
      - "&7Tier: &f%tier%"
      - "&7Spawns each &f%speed% &7seconds &f%spawnItem%"
      - "&7Sells for &f%sellPrice%"
    dropDisplayName: "&f&lNetherite Scrap Drop"
    instantBreak: false
  - name: "&f&lNetherite Ingot Generator"
    tier: 20
    price: 20000.0
    sellPrice: 1400.0
    speed: 20
    spawnItem: "NETHERITE_INGOT"
    blockType: "NETHERITE_BLOCK"
    lore: []
    itemSpawnLore: []
    hologramLines:
      - "&f%name%"
      - "&7Tier: &f%tier%"
      - "&7Spawns each &f%speed% &7seconds &f%spawnItem%"
      - "&7Sells for &f%sellPrice%"
    dropDisplayName: "&f&lNetherite Ingot Drop"
    instantBreak: false
  - name: "&5&lAncient Debris Generator"
    tier: 21
    price: 21000.0
    sellPrice: 1500.0
    speed: 20
    spawnItem: "ANCIENT_DEBRIS"
    blockType: "ANCIENT_DEBRIS"
    lore: []
    itemSpawnLore: []
    hologramLines:
      - "&5%name%"
      - "&7Tier: &5%tier%"
      - "&7Spawns each &5%speed% &7seconds &5%spawnItem%"
      - "&7Sells for &5%sellPrice%"
    dropDisplayName: "&5&lAncient Debris Drop"
    instantBreak: false
  - name: "&5&lNether Star Generator"
    tier: 22
    price: 22000.0
    sellPrice: 1600.0
    speed: 20
    spawnItem: "NETHER_STAR"
    blockType: "BEACON"
    lore: []
    itemSpawnLore: []
    hologramLines:
      - "&5%name%"
      - "&7Tier: &5%tier%"
      - "&7Spawns each &5%speed% &7seconds &5%spawnItem%"
      - "&7Sells for &5%sellPrice%"
    dropDisplayName: "&5&lNether Star Drop"
    instantBreak: false
  - name: "&c&lCrying Obsidian Generator"
    tier: 23
    price: 23000.0
    sellPrice: 1700.0
    speed: 20
    spawnItem: "CRYING_OBSIDIAN"
    blockType: "CRYING_OBSIDIAN"
    lore: []
    itemSpawnLore: []
    hologramLines:
      - "&c%name%"
      - "&7Tier: &c%tier%"
      - "&7Spawns each &c%speed% &7seconds &c%spawnItem%"
      - "&7Sells for &c%sellPrice%"
    dropDisplayName: "&c&lDragon Egg Drop"
    instantBreak: false
  - name: "&4&lObsidian Rose Generator"
    tier: 24
    price: 24000.0
    sellPrice: 1800.0
    speed: 20
    spawnItem: "WITHER_ROSE"
    blockType: "RESPAWN_ANCHOR"
    lore: []
    itemSpawnLore: []
    hologramLines:
      - "&4%name%"
      - "&7Tier: &4%tier%"
      - "&7Spawns each &4%speed% &7seconds &4%spawnItem%"
      - "&7Sells for &4%sellPrice%"
    dropDisplayName: "&4&lWither Skeleton Skull Drop"
    instantBreak: false
  - name: "&8&lReinforced deepslate Generator"
    tier: 25
    price: 25000.0
    sellPrice: 1900.0
    speed: 20
    spawnItem: "REINFORCED_DEEPSLATE"
    blockType: "REINFORCED_DEEPSLATE"
    lore: []
    itemSpawnLore: []
    hologramLines:
      - "&8%name%"
      - "&7Tier: &8%tier%"
      - "&7Spawns each &8%speed% &7seconds &8%spawnItem%"
      - "&7Sells for &8%sellPrice%"
    dropDisplayName: "&8&lReinforced deepslate Drop"
    instantBreak: false
  - name: "&6&lMagma Block Generator"
    tier: 26
    price: 26000.0
    sellPrice: 2000.0
    speed: 20
    spawnItem: "MAGMA_BLOCK"
    blockType: "MAGMA_BLOCK"
    lore: []
    itemSpawnLore: []
    hologramLines:
      - "&6%name%"
      - "&7Tier: &6%tier%"
      - "&7Spawns each &6%speed% &7seconds &6%spawnItem%"
      - "&7Sells for &6%sellPrice%"
    dropDisplayName: "&6&lMagma Block Drop"
    instantBreak: false
  - name: "&4&lBedrock Generator"
    tier: 27
    price: 27000.0
    sellPrice: 2100.0
    speed: 20
    spawnItem: "BEDROCK"
    blockType: "BEDROCK"
    lore: []
    itemSpawnLore: []
    hologramLines:
      - "&4%name%"
      - "&7Tier: &4%tier%"
      - "&7Spawns each &4%speed% &7seconds &4%spawnItem%"
      - "&7Sells for &4%sellPrice%"
    dropDisplayName: "&4&lBedrock Drop"
    instantBreak: true
  - name: "&e&lDragon Egg Generator"
    tier: 28
    price: 28000.0
    sellPrice: 2200.0
    speed: 20
    spawnItem: "DRAGON_EGG"
    blockType: "DRAGON_EGG"
    lore: []
    itemSpawnLore: []
    hologramLines:
      - "&e%name%"
      - "&7Tier: &e%tier%"
      - "&7Spawns each &e%speed% &7seconds &e%spawnItem%"
      - "&7Sells for &e%sellPrice%"
    dropDisplayName: "&e&lDragon Egg Drop"
    instantBreak: true

developer-options:
  debug: false

Expected behavior
That the command/all commands is/are going to do something? (sorry I can speak bad english xD)

Screenshots
(the error)

[14:47:57 WARN]: [GensPlus] Task #27 for GensPlus v1.6.0 generated an exception
java.lang.NullPointerException: Cannot invoke "java.lang.CharSequence.toString()" because "replacement" is null
        at java.base/java.lang.String.replace(String.java:3086) ~[?:?]
        at GensPlus-v1.6.0.jar/xyz.arcadiadevs.gensplus.GensPlus.lambda$loadGeneratorsData$9(:471) ~[GensPlus-v1.6.0.jar:?]
        at java.base/java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:197) ~[?:?]
        at java.base/java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:197) ~[?:?]
        at java.base/java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1708) ~[?:?]
        at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:509) ~[?:?]
        at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:499) ~[?:?]
        at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:575) ~[?:?]
        at java.base/java.util.stream.AbstractPipeline.evaluateToArrayNode(AbstractPipeline.java:260) ~[?:?]
        at java.base/java.util.stream.ReferencePipeline.toArray(ReferencePipeline.java:616) ~[?:?]
        at java.base/java.util.stream.ReferencePipeline.toArray(ReferencePipeline.java:622) ~[?:?]
        at java.base/java.util.stream.ReferencePipeline.toList(ReferencePipeline.java:627) ~[?:?]
        at GensPlus-v1.6.0.jar/xyz.arcadiadevs.gensplus.GensPlus.loadGeneratorsData(:473) ~[GensPlus-v1.6.0.jar:?]
        at GensPlus-v1.6.0.jar/xyz.arcadiadevs.gensplus.GensPlus$1.run(:166) ~[GensPlus-v1.6.0.jar:?]
        at org.bukkit.craftbukkit.scheduler.CraftTask.run(CraftTask.java:86) ~[paper-1.21.jar:1.21-130-b1b5d4c]
        at org.bukkit.craftbukkit.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:475) ~[paper-1.21.jar:1.21-130-b1b5d4c]
        at net.minecraft.server.MinecraftServer.tickChildren(MinecraftServer.java:1726) ~[paper-1.21.jar:1.21-130-b1b5d4c]
        at net.minecraft.server.dedicated.DedicatedServer.tickChildren(DedicatedServer.java:473) ~[paper-1.21.jar:1.21-130-b1b5d4c]
        at net.minecraft.server.MinecraftServer.tickServer(MinecraftServer.java:1598) ~[paper-1.21.jar:1.21-130-b1b5d4c]
        at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:1304) ~[paper-1.21.jar:1.21-130-b1b5d4c]
        at net.minecraft.server.MinecraftServer.lambda$spin$0(MinecraftServer.java:330) ~[paper-1.21.jar:1.21-130-b1b5d4c]
        at java.base/java.lang.Thread.run(Thread.java:1583) ~[?:?]

Additional info (please complete the following information):

• Your GensPlus version: v1.6.0

• PaperSpigot Version:
  

• Using ViaVersion/ProtocolSupport: yes, no

• Your MC version: 1.21