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[12:52:48] [pool-13-thread-1/ERROR]: [PermissionsEx] Error occurred with PermissionsEx! Please post it to http://git.io/<html><body>You are being <a href="https://git.io/create">redirected</a>.</body></html>. Full error:
java.util.ConcurrentModificationException
	at java.util.HashMap$HashIterator.nextNode(HashMap.java:1442)
	at java.util.HashMap$KeyIterator.next(HashMap.java:1466)
	at com.google.common.collect.AbstractMultimap$WrappedCollection$WrappedIterator.next(AbstractMultimap.java:531)
	at ru.tehkode.permissions.bukkit.regexperms.PermissiblePEX.permissionValue(PermissiblePEX.java:247)
	at ru.tehkode.permissions.bukkit.regexperms.PermissiblePEX.hasPermission(PermissiblePEX.java:127)
	at org.bukkit.craftbukkit.v1_7_R4.entity.CraftHumanEntity.hasPermission(CraftHumanEntity.java:111)
	at net.dajman.core.utils.runnable.LimitRunnable.run(LimitRunnable.java:47)
	at org.bukkit.craftbukkit.v1_7_R4.scheduler.CraftTask.run(CraftTask.java:71)
	at org.bukkit.craftbukkit.v1_7_R4.scheduler.CraftAsyncTask.run(CraftAsyncTask.java:53)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)