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java.lang.NullPointerException: Unexpected error	at cofh.lib.util.helpers.BlockHelper.createStackedBlock(BlockHelper.java:565)	at cofh.lib.util.helpers.BlockHelper.breakBlock(BlockHelper.java:540)	at com.firelizzard.firecraft.item.DestroyerTool.func_77648_a(DestroyerTool.java:492)	at net.minecraft.item.ItemStack.func_77943_a(ItemStack.java:129)	at net.minecraft.client.multiplayer.PlayerControllerMP.func_78760_a(PlayerControllerMP.java:360)	at net.minecraft.client.Minecraft.func_147121_ag(Minecraft.java:1447)	at net.minecraft.client.Minecraft.func_71407_l(Minecraft.java:1953)	at net.minecraft.client.Minecraft.func_71411_J(Minecraft.java:973)	at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:898)	at net.minecraft.client.main.Main.main(SourceFile:148)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)	at java.lang.reflect.Method.invoke(Method.java:483)	at net.minecraft.launchwrapper.Launch.launch(Launch.java:135)	at net.minecraft.launchwrapper.Launch.main(Launch.java:28)