This crash my server

java.lang.NullPointerException at com.someguyssoftware.treasure2.generator.GenUtil.replaceBlockWithChest(GenUtil.java:128) at com.someguyssoftware.treasure2.generator.chest.WitherChestGenerator.placeInWorld(WitherChestGenerator.java:108) at com.someguyssoftware.treasure2.generator.chest.IChestGenerator.generate(IChestGenerator.java:69) at com.someguyssoftware.treasure2.worldgen.WitherTreeWorldGenerator.generate(WitherTreeWorldGenerator.java:322) at com.someguyssoftware.treasure2.worldgen.WitherTreeWorldGenerator.generateSurface(WitherTreeWorldGenerator.java:225) at com.someguyssoftware.treasure2.worldgen.WitherTreeWorldGenerator.generate(WitherTreeWorldGenerator.java:136) at net.minecraftforge.fml.common.registry.GameRegistry.generateWorld(GameRegistry.java:167) at net.minecraft.world.chunk.Chunk.populate(Chunk.java:1020) at net.minecraft.world.chunk.Chunk.populate(Chunk.java:999) at net.minecraft.world.gen.ChunkProviderServer.provideChunk(ChunkProviderServer.java:157) at net.minecraft.server.management.PlayerChunkMapEntry.providePlayerChunk(PlayerChunkMapEntry.java:126) at net.minecraft.server.management.PlayerChunkMap.tick(SourceFile:147) at net.minecraft.world.WorldServer.tick(WorldServer.java:227) at net.minecraft.server.MinecraftServer.updateTimeLightAndEntities(MinecraftServer.java:756) at net.minecraft.server.dedicated.DedicatedServer.updateTimeLightAndEntities(DedicatedServer.java:397) at net.minecraft.server.MinecraftServer.tick(MinecraftServer.java:668) at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:526) at java.lang.Thread.run(Thread.java:748)

What version of Forge, Treasure and GottschCore are you using?

https://paste.dimdev.org/aqesejatev.mccrash

got the same crash

GottschCore-mc1.12.2-f14.23.5.2768-v1.9.0.jar
Treasure2-mc1.12.2-f14.23.5.2768-v1.7.0.jar
forge-14.23.5.2847

ok thanks

This issue is fixed in treasure v1.8.0, which will be coming out soon.