Crash Minecrafcoot

---- Minecraft Crash Report ----
// Ooh. Shiny.

Time: 26/08/16 07:05 PM
Description: Ticking memory connection

java.lang.NullPointerException: Ticking memory connection
	at vazkii.gencreator.world.PlacementMethod.constructTileEntity(PlacementMethod.java:44)
	at vazkii.gencreator.world.PlacementMethod.place(PlacementMethod.java:30)
	at vazkii.gencreator.world.GCWorldGenerator.placeBlock(GCWorldGenerator.java:82)
	at vazkii.gencreator.world.GCWorldGenerator.generateStructure(GCWorldGenerator.java:63)
	at vazkii.gencreator.world.GCWorldGenerator.generate(GCWorldGenerator.java:49)
	at cpw.mods.fml.common.registry.GameRegistry.generateWorld(GameRegistry.java:112)
	at net.minecraft.world.gen.ChunkProviderServer.func_73153_a(ChunkProviderServer.java:280)
	at net.minecraft.world.chunk.Chunk.func_76624_a(Chunk.java:1050)
	at net.minecraft.world.gen.ChunkProviderServer.originalLoadChunk(ChunkProviderServer.java:190)
	at net.minecraft.world.gen.ChunkProviderServer.loadChunk(ChunkProviderServer.java:131)
	at net.minecraft.world.gen.ChunkProviderServer.func_73158_c(ChunkProviderServer.java:101)
	at net.minecraft.server.management.PlayerManager$PlayerInstance.<init>(PlayerManager.java:509)
	at net.minecraft.server.management.PlayerManager.getOrCreateChunkWatcher(PlayerManager.java:204)
	at net.minecraft.server.management.PlayerManager.func_72685_d(PlayerManager.java:383)
	at net.minecraft.server.management.ServerConfigurationManager.func_72358_d(ServerConfigurationManager.java:313)
	at net.minecraft.network.NetHandlerPlayServer.func_147347_a(NetHandlerPlayServer.java:404)
	at net.minecraft.network.play.client.C03PacketPlayer.func_148833_a(SourceFile:137)
	at net.minecraft.network.play.client.C03PacketPlayer$C06PacketPlayerPosLook.func_148833_a(SourceFile:20)
	at net.minecraft.network.NetworkManager.func_74428_b(NetworkManager.java:212)
	at net.minecraft.network.NetworkSystem.func_151269_c(NetworkSystem.java:165)
	at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:659)
	at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:547)
	at net.minecraft.server.integrated.IntegratedServer.func_71217_p(IntegratedServer.java:186)
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:396)
	at net.minecraft.server.MinecraftServer$2.run(MinecraftServer.java:685)