Error appears when unrelated crafting recipe fails

[MinecraftCitiesNetwork]

Our server currently uses ItemsAdder, when a player attempts to craft an item they do not have permission to twice, this error appears.

[08:04:08 ERROR]: Could not pass event CraftItemEvent to SimpleLockpicking v3.3
java.lang.NullPointerException: Cannot invoke "org.bukkit.inventory.meta.ItemMeta.getDisplayName()" because the return value of "org.bukkit.inventory.ItemStack.getItemMeta()" is null
at me.ShermansWorld.SimpleLockpicking.CraftingRecipes.CraftListener(CraftingRecipes.java:59) ~[SimpleLockpicking-3.4.jar:?]
at com.destroystokyo.paper.event.executor.asm.generated.GeneratedEventExecutor1599.execute(Unknown Source) ~[?:?]
at org.bukkit.plugin.EventExecutor$2.execute(EventExecutor.java:77) ~[paper-api-1.20.1-R0.1-SNAPSHOT.jar:?]
at co.aikar.timings.TimedEventExecutor.execute(TimedEventExecutor.java:77) ~[paper-api-1.20.1-R0.1-SNAPSHOT.jar:git-Paper-138]
at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:70) ~[paper-api-1.20.1-R0.1-SNAPSHOT.jar:?]
at io.papermc.paper.plugin.manager.PaperEventManager.callEvent(PaperEventManager.java:54) ~[paper-1.20.1.jar:git-Paper-138]
at io.papermc.paper.plugin.manager.PaperPluginManagerImpl.callEvent(PaperPluginManagerImpl.java:126) ~[paper-1.20.1.jar:git-Paper-138]
at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:615) ~[paper-api-1.20.1-R0.1-SNAPSHOT.jar:?]
at net.minecraft.server.network.ServerGamePacketListenerImpl.handleContainerClick(ServerGamePacketListenerImpl.java:3251) ~[?:?]
at net.minecraft.network.protocol.game.ServerboundContainerClickPacket.handle(ServerboundContainerClickPacket.java:58) ~[?:?]
at net.minecraft.network.protocol.game.ServerboundContainerClickPacket.handle(ServerboundContainerClickPacket.java:23) ~[?:?]
at net.minecraft.network.protocol.PacketUtils.lambda$ensureRunningOnSameThread$0(PacketUtils.java:51) ~[?:?]
at net.minecraft.server.TickTask.run(TickTask.java:18) ~[paper-1.20.1.jar:git-Paper-138]
at net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:153) ~[?:?]
at net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:24) ~[?:?]
at net.minecraft.server.MinecraftServer.doRunTask(MinecraftServer.java:1339) ~[paper-1.20.1.jar:git-Paper-138]
at net.minecraft.server.MinecraftServer.d(MinecraftServer.java:197) ~[paper-1.20.1.jar:git-Paper-138]
at net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:126) ~[?:?]
at net.minecraft.server.MinecraftServer.pollTaskInternal(MinecraftServer.java:1316) ~[paper-1.20.1.jar:git-Paper-138]
at net.minecraft.server.MinecraftServer.pollTask(MinecraftServer.java:1309) ~[paper-1.20.1.jar:git-Paper-138]
at net.minecraft.util.thread.BlockableEventLoop.managedBlock(BlockableEventLoop.java:136) ~[?:?]
at net.minecraft.server.MinecraftServer.waitUntilNextTick(MinecraftServer.java:1287) ~[paper-1.20.1.jar:git-Paper-138]
at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:1175) ~[paper-1.20.1.jar:git-Paper-138]
at net.minecraft.server.MinecraftServer.lambda$spin$0(MinecraftServer.java:318) ~[paper-1.20.1.jar:git-Paper-138]

[ShermansWorld]

Thanks for the report, I believe I see the issue.

I have compiled a new jar (3.4.1) that should fix it, needs to be tested. I can send you it, add me on discord: shermansworld

~ Sherman