net.minecraft.util.ReportedException: Ticking block entity
	at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:726) ~[MinecraftServer.class:?]
	at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:384) ~[lh.class:?]
	at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:624) ~[MinecraftServer.class:?]
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:482) [MinecraftServer.class:?]
	at java.lang.Thread.run(Thread.java:745) [?:1.8.0_111]
Caused by: java.lang.NullPointerException
	at blusunrize.immersiveengineering.common.blocks.metal.TileEntityAssembler.consumeItem(TileEntityAssembler.java:243) ~[TileEntityAssembler.class:?]
	at blusunrize.immersiveengineering.common.blocks.metal.TileEntityAssembler.func_73660_a(TileEntityAssembler.java:161) ~[TileEntityAssembler.class:?]
	at net.minecraft.world.World.func_72939_s(World.java:1802) ~[ajs.class:?]
	at net.minecraft.world.WorldServer.func_72939_s(WorldServer.java:621) ~[lw.class:?]
	at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:720) ~[MinecraftServer.class:?]
	... 4 more