Error converting 1.5.2 world to Nukkit in 3.0.0

[ElectroArtifex]

Affected Version
3.0

Describe the bug
Program would not complete conversion.

Exception stack trace

java.util.NoSuchElementException: type
        at br.com.gamemods.nbtmanipulator.NbtCompound.require(nbt.kt:452)
        at br.com.gamemods.nbtmanipulator.NbtCompound.getString(nbt.kt:510)
        at br.com.gamemods.j2nwc.internal.Block_converterKt.toNukkit(block-converter.kt:59)
        at br.com.gamemods.j2nwc.internal.Chunk_converterKt.toNukkit(chunk-converter.kt:116)
        at br.com.gamemods.j2nwc.internal.Chunk_converterKt$toNukkit$nukkitSections$2.invoke(chunk-converter.kt:31)
        at br.com.gamemods.j2nwc.internal.Chunk_converterKt$toNukkit$nukkitSections$2.invoke(chunk-converter.kt)
        at kotlin.sequences.TransformingSequence$iterator$1.next(Sequences.kt:172)
        at kotlin.sequences.FilteringSequence$iterator$1.calcNext(Sequences.kt:132)
        at kotlin.sequences.FilteringSequence$iterator$1.hasNext(Sequences.kt:156)
        at kotlin.collections.MapsKt__MapsKt.putAll(Maps.kt:374)
        at kotlin.collections.MapsKt__MapsKt.toMap(Maps.kt:542)
        at kotlin.collections.MapsKt__MapsKt.toMap(Maps.kt:536)
        at br.com.gamemods.j2nwc.internal.Chunk_converterKt.toNukkit(chunk-converter.kt:35)
        at br.com.gamemods.j2nwc.internal.RegionFileConverter.toNukkit(RegionFileConverter.kt:39)
        at br.com.gamemods.j2nwc.internal.RegionFileConverter.convertRegionFile(RegionFileConverter.kt:19)
        at br.com.gamemods.j2nwc.WorldConverter.convert(WorldConverter.kt:105)
        at br.com.gamemods.j2nwc.WorldConverterCLI.main(WorldConverterCLI.kt:83)
The world conversion has failed

Screenshots
(https://i.imgur.com/FiuNZFF.png)