Error RecipeManager Plugin

2013-06-02 04:52:26 [SEVERE] Could not pass event ChunkLoadEvent to RecipeManager v2.0
org.bukkit.event.EventException
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:427)
        at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
        at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
        at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
        at net.minecraft.server.v1_5_R3.ChunkProviderServer.getChunkAt(ChunkProviderServer.java:138)
        at net.minecraft.server.v1_5_R3.ChunkProviderServer.getChunkAt(ChunkProviderServer.java:84)
        at net.minecraft.server.v1_5_R3.PlayerList.a(PlayerList.java:170)
        at net.minecraft.server.v1_5_R3.PlayerList.c(PlayerList.java:219)
        at net.minecraft.server.v1_5_R3.PlayerList.a(PlayerList.java:100)
        at net.minecraft.server.v1_5_R3.PendingConnection.d(PendingConnection.java:129)
        at net.minecraft.server.v1_5_R3.PendingConnection.c(PendingConnection.java:44)
        at net.minecraft.server.v1_5_R3.DedicatedServerConnectionThread.a(DedicatedServerConnectionThread.java:41)
        at net.minecraft.server.v1_5_R3.DedicatedServerConnection.b(SourceFile:29)
        at net.minecraft.server.v1_5_R3.MinecraftServer.r(MinecraftServer.java:581)
        at net.minecraft.server.v1_5_R3.DedicatedServer.r(DedicatedServer.java:226)
        at net.minecraft.server.v1_5_R3.MinecraftServer.q(MinecraftServer.java:477)
        at net.minecraft.server.v1_5_R3.MinecraftServer.run(MinecraftServer.java:410)
        at net.minecraft.server.v1_5_R3.ThreadServerApplication.run(SourceFile:573)
Caused by: java.lang.NullPointerException
        at org.bukkit.craftbukkit.v1_5_R3.inventory.CraftInventory.getItem(CraftInventory.java:49)
        at org.bukkit.craftbukkit.v1_5_R3.inventory.CraftInventoryFurnace.getFuel(CraftInventoryFurnace.java:19)
        at ro.thehunters.digi.recipeManager.Furnaces.set(Furnaces.java:98)
        at ro.thehunters.digi.recipeManager.Events.findFurnaces(Events.java:1429)
        at ro.thehunters.digi.recipeManager.Events.chunkLoad(Events.java:1354)
        at sun.reflect.GeneratedMethodAccessor24.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:601)
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:425)
        ... 17 more