Bukkit

What steps will reproduce the problem?
1.Nothing, just spams the console.
2.
3.

2012-06-28 15:55:28 [SEVERE] Could not pass event UpkeepEvent to HeroStronghold
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:304)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:460)
    at multitallented.redcastlemedia.bukkit.herostronghold.checkregiontask.CheckUpkeepThread.run(CheckUpkeepThread.java:32)
    at multitallented.redcastlemedia.bukkit.herostronghold.checkregiontask.CheckRegionTask.run(CheckRegionTask.java:66)
    at org.bukkit.craftbukkit.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:126)
    at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:533)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:459)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:492)
Caused by: java.lang.NoSuchMethodError: multitallented.redcastlemedia.bukkit.herostronghold.events.UpkeepEvent.getRegionLocation()Lorg/bukkit/Location;
    at main.java.multitallented.plugins.herostronghold.effects.EffectConveyorBelt$UpkeepListener.onCustomEvent(EffectConveyorBelt.java:52)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.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:302)
    ... 8 more
2012-06-28 15:55:28 [SEVERE] Could not pass event UpkeepEvent to HeroStronghold
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:304)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:460)
    at multitallented.redcastlemedia.bukkit.herostronghold.checkregiontask.CheckUpkeepThread.run(CheckUpkeepThread.java:32)
    at multitallented.redcastlemedia.bukkit.herostronghold.checkregiontask.CheckRegionTask.run(CheckRegionTask.java:66)
    at org.bukkit.craftbukkit.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:126)
    at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:533)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:459)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:492)
Caused by: java.lang.NoSuchMethodError: multitallented.redcastlemedia.bukkit.herostronghold.events.UpkeepEvent.getRegionLocation()Lorg/bukkit/Location;
    at main.java.multitallented.plugins.herostronghold.effects.EffectScheduledUpkeep$UpkeepListener.onCustomEvent(EffectScheduledUpkeep.java:40)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.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:302)
    ... 8 more

What version of the product are you using?
HeroStronghold v1.1.4

Please provide any additional information below.

Sometimes i have this error too. But there are no negative side effect and so so i ignored it :)

I cannot reproduce the error with any action or configuration :(