RM Error

11:24 PM [WARNING] [RecipeManager] Task #2070 for RecipeManager v2.0 generated an exception
java.lang.NullPointerException
	at net.minecraft.item.ItemStack.func_77960_j(ItemStack.java:339)
	at net.minecraft.item.crafting.ShapelessRecipes.toBukkitRecipe(ShapelessRecipes.java:38)
	at net.minecraft.item.crafting.ShapelessRecipes.toBukkitRecipe(ShapelessRecipes.java:15)
	at org.bukkit.craftbukkit.v1_7_R1.inventory.RecipeIterator.next(RecipeIterator.java:32)
	at org.bukkit.craftbukkit.v1_7_R1.inventory.RecipeIterator.next(RecipeIterator.java:10)
	at ro.thehunters.digi.recipeManager.Vanilla.init(Vanilla.java:118)
	at ro.thehunters.digi.recipeManager.RecipeManager.onEnablePost(RecipeManager.java:90)
	at ro.thehunters.digi.recipeManager.RecipeManager.access$0(RecipeManager.java:73)
	at ro.thehunters.digi.recipeManager.RecipeManager$1.run(RecipeManager.java:66)
	at org.bukkit.craftbukkit.v1_7_R1.scheduler.CraftTask.run(CraftTask.java:58)
	at org.bukkit.craftbukkit.v1_7_R1.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:345)
	at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:843)
	at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:432)
	at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:783)
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:646)
	at java.lang.Thread.run(Unknown Source)