NEI Error

[NEI Item Loading/ERROR] [NotEnoughItems]: Ommiting mods.railcraft.common.blocks.aesthetics.lantern.ItemLantern@754393a4:0 ItemLantern
java.lang.NullPointerException
	at mods.railcraft.common.util.inventory.InvTools.getBlockFromStack(InvTools.java:970) ~[InvTools.class:?]
	at mods.railcraft.common.blocks.aesthetics.lantern.EnumLanternStone.getTexture(EnumLanternStone.java:86) ~[EnumLanternStone.class:?]
	at mods.railcraft.common.blocks.aesthetics.lantern.ItemLantern.func_77617_a(ItemLantern.java:31) ~[ItemLantern.class:?]
	at net.minecraft.item.Item.func_77650_f(Item.java:440) ~[adb.class:?]
	at codechicken.nei.ItemList$1.damageSearch(ItemList.java:165) [ItemList$1.class:?]
	at codechicken.nei.ItemList$1.execute(ItemList.java:206) [ItemList$1.class:?]
	at codechicken.nei.RestartableTask$1.run(RestartableTask.java:24) [RestartableTask$1.class:?]
[NEI Item Loading/ERROR] [NotEnoughItems]: Ommiting mods.railcraft.common.blocks.aesthetics.lantern.ItemLantern@2a8e6288:0 ItemLantern
java.lang.NullPointerException
	at mods.railcraft.common.util.inventory.InvTools.getBlockFromStack(InvTools.java:970) ~[InvTools.class:?]
	at mods.railcraft.common.blocks.aesthetics.lantern.EnumLanternMetal.getTexture(EnumLanternMetal.java:75) ~[EnumLanternMetal.class:?]
	at mods.railcraft.common.blocks.aesthetics.lantern.ItemLantern.func_77617_a(ItemLantern.java:31) ~[ItemLantern.class:?]
	at net.minecraft.item.Item.func_77650_f(Item.java:440) ~[adb.class:?]
	at codechicken.nei.ItemList$1.damageSearch(ItemList.java:165) [ItemList$1.class:?]
	at codechicken.nei.ItemList$1.execute(ItemList.java:206) [ItemList$1.class:?]
	at codechicken.nei.RestartableTask$1.run(RestartableTask.java:24) [RestartableTask$1.class:?]