java.lang.IllegalStateException
	at net.minecraft.server.v1_15_R1.DataPaletteBlock.a(DataPaletteBlock.java:37)
	at net.minecraft.server.v1_15_R1.DataPaletteBlock.setBlock(DataPaletteBlock.java:144)
	at net.minecraft.server.v1_15_R1.ChunkSection.setType(ChunkSection.java:68)
	at net.minecraft.server.v1_15_R1.ChunkSection.setType(ChunkSection.java:61)
	at net.minecraft.server.v1_15_R1.Chunk.setType(Chunk.java:346)
	at net.minecraft.server.v1_15_R1.World.setTypeAndData(World.java:356)
	at org.bukkit.craftbukkit.v1_15_R1.block.CraftBlock.setTypeAndData(CraftBlock.java:190)
	at org.bukkit.craftbukkit.v1_15_R1.block.CraftBlockState.update(CraftBlockState.java:188)
	at org.bukkit.craftbukkit.v1_15_R1.block.CraftBlockState.update(CraftBlockState.java:171)
	at org.bukkit.craftbukkit.v1_15_R1.event.CraftEventFactory.handleBlockSpreadEvent(CraftEventFactory.java:745)
	at net.minecraft.server.v1_15_R1.BlockFire.tick(BlockFire.java:186)
	at net.minecraft.server.v1_15_R1.IBlockData.a(IBlockData.java:210)
	at net.minecraft.server.v1_15_R1.WorldServer.b(WorldServer.java:735)
	at net.minecraft.server.v1_15_R1.TickListServer.b(TickListServer.java:82)
	at net.minecraft.server.v1_15_R1.WorldServer.doTick(WorldServer.java:429)
	at net.minecraft.server.v1_15_R1.MinecraftServer.b(MinecraftServer.java:1273)
	at net.minecraft.server.v1_15_R1.DedicatedServer.b(DedicatedServer.java:429)
	at net.minecraft.server.v1_15_R1.MinecraftServer.a(MinecraftServer.java:1131)
	at net.minecraft.server.v1_15_R1.MinecraftServer.run(MinecraftServer.java:957)
	at java.base/java.lang.Thread.run(Thread.java:830)