21:43:53 [WARNING] Failed to handle packet: java.lang.NullPointerException
java.lang.NullPointerException
        at ic2.common.BlockMultiID.postPlace(BlockMultiID.java:144)
        at org.getspout.spout.block.mcblock.CustomContainer.postPlace(CustomCont
ainer.java:342)
        at net.minecraft.server.ItemBlock.a(ItemBlock.java:103)
        at net.minecraft.server.ItemStack.placeItem(ItemStack.java:83)
        at net.minecraft.server.ItemInWorldManager.interact(ItemInWorldManager.j
ava:326)
        at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:608)
        at net.minecraft.server.Packet15Place.handle(SourceFile:39)
        at net.minecraft.server.NetworkManager.b(NetworkManager.java:226)
        at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:100)
        at org.getspout.spout.SpoutNetServerHandler.a(SpoutNetServerHandler.java
:552)
        at net.minecraft.server.NetworkListenThread.a(NetworkListenThread.java:7
8)
        at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:543)
        at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:441)
        at net.minecraft.server.ThreadServerApplication.run(SourceFile:465)