java.lang.NullPointerException: Updating screen events

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java.lang.NullPointerException: Updating screen events
at com.smithsmodding.armory.common.fluid.FluidMoltenMetal.getLocalizedName(FluidMoltenMetal.java:41)
at mekanism.common.util.LangUtils.localizeFluidStack(LangUtils.java:26)
at mekanism.common.item.ItemBlockMachine.func_77624_a(ItemBlockMachine.java:199)
at net.minecraft.client.gui.inventory.GuiContainerCreative.updateFilteredItems(GuiContainerCreative.java:367)
at net.minecraft.client.gui.inventory.GuiContainerCreative.func_147053_i(GuiContainerCreative.java:345)
at net.minecraft.client.gui.inventory.GuiContainerCreative.func_147050_b(GuiContainerCreative.java:523)
at net.minecraft.client.gui.inventory.GuiContainerCreative.func_146286_b(GuiContainerCreative.java:427)
at net.minecraft.client.gui.GuiScreen.func_146274_d(GuiScreen.java:556)
at net.minecraft.client.gui.inventory.GuiContainerCreative.func_146274_d(GuiContainerCreative.java:539)
at net.minecraft.client.gui.GuiScreen.func_146269_k(GuiScreen.java:515)
at net.minecraft.client.Minecraft.func_71407_l(Minecraft.java:1700)
at net.minecraft.client.Minecraft.func_71411_J(Minecraft.java:1055)
at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:371)
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)

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