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java.lang.NullPointerException: 	at tconstruct.blocks.logic.SmelteryLogic.updateFuelGague(SmelteryLogic.java:625)	at tconstruct.blocks.logic.SmelteryLogic.func_70316_g(SmelteryLogic.java:288)	at net.minecraft.world.World.func_72939_s(World.java:2209)	at net.minecraft.client.Minecraft.func_71407_l(Minecraft.java:1921)	at net.minecraft.client.Minecraft.func_71411_J(Minecraft.java:910)	at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:838)	at net.minecraft.client.main.Main.main(SourceFile:101)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)	at java.lang.reflect.Method.invoke(Unknown Source)	at net.minecraft.launchwrapper.Launch.launch(Launch.java:131)	at net.minecraft.launchwrapper.Launch.main(Launch.java:27)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)	at java.lang.reflect.Method.invoke(Unknown Source)	at magic.launcher.Launcher.main(SourceFile:207)