[21:12:00] GrafïthZ-|^: [SEVERE] Encountered an unexpected exception NullPointerException
java.lang.NullPointerException
 at ic2.advancedmachines.common.TileEntityAdvancedMachine.operate(TileEntityAdvancedMachine.java:210)
 at ic2.advancedmachines.common.TileEntityAdvancedMachine.g(TileEntityAdvancedMachine.java:96)
 at xe.h(World.java:2020)
 at ie.h(WorldServer.java:463)
 at net.minecraft.server.MinecraftServer.r(MinecraftServer.java:649)
 at hg.r(DedicatedServer.java:241)
 at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:585)
 at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:492)
 at fp.run(SourceFile:818)