2013-07-09 18:30:55 [SEVERE] org.apache.commons.lang.UnhandledException: Plugin RoyalCommands v0.2.8-SNAPSHOT-74 generated an exception while executing task 52
	at org.bukkit.craftbukkit.v1_6_R1.scheduler.CraftAsyncTask.run(CraftAsyncTask.java:56)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
	at java.lang.Thread.run(Thread.java:722)
Caused by: java.util.ConcurrentModificationException
	at java.util.HashMap$HashIterator.nextEntry(HashMap.java:894)
	at java.util.HashMap$ValueIterator.next(HashMap.java:922)
	at java.util.AbstractCollection.toArray(AbstractCollection.java:141)
	at java.util.Collections$SynchronizedCollection.toArray(Collections.java:1625)
	at org.royaldev.royalcommands.runners.UserdataRunner.run(UserdataRunner.java:21)
	at org.bukkit.craftbukkit.v1_6_R1.scheduler.CraftTask.run(CraftTask.java:67)
	at org.bukkit.craftbukkit.v1_6_R1.scheduler.CraftAsyncTask.run(CraftAsyncTask.java:53)
	... 3 more