[22:15:57] [Server thread/ERROR] [FML]: A TileEntity type xyz.saxarok.openmod.tileentitites.PlayerInterfaceTE has throw an exception trying to write state. It will not persist. Report this to the mod author
java.lang.RuntimeException: class xyz.saxarok.openmod.tileentitites.PlayerInterfaceTE is missing a mapping! This is a bug!
	at net.minecraft.tileentity.TileEntity.writeInternal(TileEntity.java:89) ~[TileEntity.class:?]
	at net.minecraft.tileentity.TileEntity.writeToNBT(TileEntity.java:80) ~[TileEntity.class:?]
	at xyz.saxarok.openmod.tileentitites.PlayerInterfaceTE.writeToNBT(PlayerInterfaceTE.java:122) ~[PlayerInterfaceTE.class:?]
	at net.minecraft.world.chunk.storage.AnvilChunkLoader.writeChunkToNBT(AnvilChunkLoader.java:412) [AnvilChunkLoader.class:?]
	at net.minecraft.world.chunk.storage.AnvilChunkLoader.saveChunk(AnvilChunkLoader.java:183) [AnvilChunkLoader.class:?]
	at net.minecraft.world.gen.ChunkProviderServer.saveChunkData(ChunkProviderServer.java:214) [ChunkProviderServer.class:?]
	at net.minecraft.world.gen.ChunkProviderServer.saveChunks(ChunkProviderServer.java:242) [ChunkProviderServer.class:?]
	at net.minecraft.world.WorldServer.saveAllChunks(WorldServer.java:1060) [WorldServer.class:?]
	at net.minecraft.server.MinecraftServer.saveAllWorlds(MinecraftServer.java:468) [MinecraftServer.class:?]
	at net.minecraft.server.integrated.IntegratedServer.saveAllWorlds(IntegratedServer.java:274) [IntegratedServer.class:?]
	at net.minecraft.server.MinecraftServer.tick(MinecraftServer.java:764) [MinecraftServer.class:?]
	at net.minecraft.server.integrated.IntegratedServer.tick(IntegratedServer.java:192) [IntegratedServer.class:?]
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:590) [MinecraftServer.class:?]
	at java.lang.Thread.run(Thread.java:748) [?:1.8.0_152]