RecipeManager ChunkLoading Error

12:44 PM [SEVERE] Could not pass event ChunkLoadEvent to RecipeManager v2.0
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.GeneratedMethodAccessor113.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:425)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.TimedRegisteredListener.callEvent(TimedRegisteredListener.java:35)
    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 com.bergerkiller.bukkit.common.bases.ChunkProviderServerBase.getBukkitChunkAt(ChunkProviderServerBase.java:105)
    at net.timedminecraft.server.TimedChunkProviderServer.getBukkitChunkAt(TimedChunkProviderServer.java:130)
    at com.bergerkiller.bukkit.common.bases.ChunkProviderServerBase.getChunkAt(ChunkProviderServerBase.java:92)
    at net.minecraft.server.v1_5_R3.ChunkProviderServer.getChunkAt(ChunkProviderServer.java:84)
    at org.bukkit.craftbukkit.v1_5_R3.CraftWorld.getChunkAt(CraftWorld.java:119)
    at org.bukkit.craftbukkit.v1_5_R3.CraftWorld.getBlockAt(CraftWorld.java:83)
    at org.bukkit.craftbukkit.v1_5_R3.CraftWorld.getBlockAt(CraftWorld.java:482)
    at org.bukkit.Location.getBlock(Location.java:82)
    at fromgate.weatherman.WMLocalWeather.getRain(WMLocalWeather.java:63)
    at fromgate.weatherman.WMLocalWeather.updatePlayerRain(WMLocalWeather.java:264)
    at fromgate.weatherman.WMLocalWeather.onPlayerTeleport(WMLocalWeather.java:286)
    at sun.reflect.GeneratedMethodAccessor127.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:425)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.TimedRegisteredListener.callEvent(TimedRegisteredListener.java:35)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at org.bukkit.craftbukkit.v1_5_R3.entity.CraftPlayer.teleport(CraftPlayer.java:371)
    at org.bukkit.craftbukkit.v1_5_R3.entity.CraftEntity.teleport(CraftEntity.java:194)
    at net.citizensnpcs.npc.entity.HumanController.createEntity(HumanController.java:24)
    at net.citizensnpcs.npc.AbstractEntityController.spawn(AbstractEntityController.java:28)
    at net.citizensnpcs.npc.CitizensNPC.spawn(CitizensNPC.java:179)
    at net.aufdemrand.sentry.SentryInstance$SentryLogic.run(SentryInstance.java:1457)
    at org.timedbukkit.craftbukkit.scheduler.TimedWrapper.run(TimedWrapper.java:39)
    at org.bukkit.craftbukkit.v1_5_R3.scheduler.CraftTask.run(CraftTask.java:53)
    at org.bukkit.craftbukkit.v1_5_R3.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:345)
    at net.minecraft.server.v1_5_R3.MinecraftServer.r(MinecraftServer.java:513)
    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)