[INFO] tachohentai issued server command: /d unall
2013-03-20 05:01:37 [SEVERE] null
org.bukkit.command.CommandException: Unhandled exception executing command 'd' in plugin iDisguise v1.5.6
	at org.bukkit.command.PluginCommand.execute(PluginCommand.java:46)
	at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:187)
	at org.bukkit.craftbukkit.v1_5_R1.CraftServer.dispatchCommand(CraftServer.java:523)
	at net.minecraft.server.v1_5_R1.PlayerConnection.handleCommand(PlayerConnection.java:967)
	at net.minecraft.server.v1_5_R1.PlayerConnection.chat(PlayerConnection.java:885)
	at net.minecraft.server.v1_5_R1.PlayerConnection.a(PlayerConnection.java:840)
	at net.minecraft.server.v1_5_R1.Packet3Chat.handle(Packet3Chat.java:44)
	at net.minecraft.server.v1_5_R1.NetworkManager.b(NetworkManager.java:292)
	at net.minecraft.server.v1_5_R1.PlayerConnection.d(PlayerConnection.java:113)
	at net.minecraft.server.v1_5_R1.ServerConnection.b(SourceFile:35)
	at net.minecraft.server.v1_5_R1.DedicatedServerConnection.b(SourceFile:30)
	at net.minecraft.server.v1_5_R1.MinecraftServer.r(MinecraftServer.java:580)
	at net.minecraft.server.v1_5_R1.DedicatedServer.r(DedicatedServer.java:225)
	at net.minecraft.server.v1_5_R1.MinecraftServer.q(MinecraftServer.java:476)
	at net.minecraft.server.v1_5_R1.MinecraftServer.run(MinecraftServer.java:409)
	at net.minecraft.server.v1_5_R1.ThreadServerApplication.run(SourceFile:573)
Caused by: java.util.ConcurrentModificationException
	at java.util.HashMap$HashIterator.nextEntry(Unknown Source)
	at java.util.HashMap$KeyIterator.next(Unknown Source)
	at de.robingrether.idisguise.api.DisguiseAPI.undisguiseAll(DisguiseAPI.java:93)
	at de.robingrether.idisguise.iDisguise.onCommand(iDisguise.java:446)
	at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44)
	... 15 more