Description: Exception ticking world

java.lang.RuntimeException: class exokem.exkva.objects.machines.TileEntityMatterAtomizer is missing a mapping! This is a bug!
	at net.minecraft.tileentity.TileEntity.writeInternal(TileEntity.java:89)
	at net.minecraft.tileentity.TileEntity.getUpdateTag(TileEntity.java:226)
	at net.minecraft.network.play.server.SPacketChunkData.<init>(SPacketChunkData.java:51)
	at net.minecraft.server.management.PlayerChunkMapEntry.sendToPlayers(PlayerChunkMapEntry.java:161)
	at net.minecraft.server.management.PlayerChunkMap.tick(PlayerChunkMap.java:212)
	at net.minecraft.world.WorldServer.tick(WorldServer.java:236)
	at net.minecraft.server.MinecraftServer.updateTimeLightAndEntities(MinecraftServer.java:831)
	at net.minecraft.server.MinecraftServer.tick(MinecraftServer.java:743)
	at net.minecraft.server.integrated.IntegratedServer.tick(IntegratedServer.java:192)
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:592)
	at java.lang.Thread.run(Thread.java:748)


A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

-- Head --
Thread: Client thread
Stacktrace:
	at net.minecraft.tileentity.TileEntity.writeInternal(TileEntity.java:89)
	at net.minecraft.tileentity.TileEntity.getUpdateTag(TileEntity.java:226)
	at net.minecraft.network.play.server.SPacketChunkData.<init>(SPacketChunkData.java:51)
	at net.minecraft.server.management.PlayerChunkMapEntry.sendToPlayers(PlayerChunkMapEntry.java:161)
	at net.minecraft.server.management.PlayerChunkMap.tick(PlayerChunkMap.java:212)
	at net.minecraft.world.WorldServer.tick(WorldServer.java:236)

-- Affected level --
Details:
	Level name: test19
	All players: 1 total; [EntityPlayerMP['Player577'/295, l='test19', x=237.30, y=63.00, z=242.09]]
	Chunk stats: ServerChunkCache: 626 Drop: 0
	Level seed: -8414337417702247630
	Level generator: ID 00 - default, ver 1. Features enabled: true
	Level generator options:
	Level spawn location: World: (235,64,232), Chunk: (at 11,4,8 in 14,14; contains blocks 224,0,224 to 239,255,239), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511)
	Level time: 1002 game time, 1002 day time
	Level dimension: 0
	Level storage version: 0x04ABD - Anvil
	Level weather: Rain time: 85028 (now: false), thunder time: 66590 (now: false)
	Level game mode: Game mode: creative (ID 1). Hardcore: false. Cheats: true
Stacktrace:
	at net.minecraft.server.MinecraftServer.updateTimeLightAndEntities(MinecraftServer.java:831)
	at net.minecraft.server.MinecraftServer.tick(MinecraftServer.java:743)
	at net.minecraft.server.integrated.IntegratedServer.tick(IntegratedServer.java:192)
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:592)
	at java.lang.Thread.run(Thread.java:748)