2012-12-10 14:51:18 [INFO] [MyHungerGames] 0.9-dev - 1 second(s)...
2012-12-10 14:51:19 [WARNING] [MyHungerGames] Task #792 for MyHungerGames v0.9-dev generated an exception
java.lang.NullPointerException
	at com.randude14.hungergames.GameCountdown.cancel(GameCountdown.java:58)
	at com.randude14.hungergames.games.HungerGame.startGame(HungerGame.java:526)
	at com.randude14.hungergames.games.HungerGame.startGame(HungerGame.java:497)
	at com.randude14.hungergames.GameCountdown.run(GameCountdown.java:74)
	at org.bukkit.craftbukkit.scheduler.CraftTask.run(CraftTask.java:53)
	at org.bukkit.craftbukkit.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:345)
	at net.minecraft.server.MinecraftServer.r(MinecraftServer.java:529)
	at net.minecraft.server.DedicatedServer.r(DedicatedServer.java:222)
	at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:493)
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:426)
	at net.minecraft.server.ThreadServerApplication.run(SourceFile:856)

2012-12-10 14:51:35 [INFO] xxx issued server command: /hga stop tunnel_hg
2012-12-10 14:51:35 [SEVERE] null
org.bukkit.command.CommandException: Unhandled exception executing command 'hga' in plugin MyHungerGames v0.9-dev
	at org.bukkit.command.PluginCommand.execute(PluginCommand.java:46)
	at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:186)
	at org.bukkit.craftbukkit.CraftServer.dispatchCommand(CraftServer.java:502)
	at net.minecraft.server.NetServerHandler.handleCommand(NetServerHandler.java:985)
	at net.minecraft.server.NetServerHandler.chat(NetServerHandler.java:903)
	at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:858)
	at net.minecraft.server.Packet3Chat.handle(Packet3Chat.java:44)
	at net.minecraft.server.NetworkManager.b(NetworkManager.java:290)
	at net.minecraft.server.NetServerHandler.d(NetServerHandler.java:113)
	at net.minecraft.server.ServerConnection.b(SourceFile:39)
	at net.minecraft.server.DedicatedServerConnection.b(SourceFile:30)
	at net.minecraft.server.MinecraftServer.r(MinecraftServer.java:595)
	at net.minecraft.server.DedicatedServer.r(DedicatedServer.java:222)
	at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:493)
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:426)
	at net.minecraft.server.ThreadServerApplication.run(SourceFile:856)
Caused by: java.util.ConcurrentModificationException
	at java.util.TreeMap$PrivateEntryIterator.nextEntry(TreeMap.java:1115)
	at java.util.TreeMap$KeyIterator.next(TreeMap.java:1169)
	at com.randude14.hungergames.games.HungerGame.clearWaitingPlayers(HungerGame.java:357)
	at com.randude14.hungergames.games.HungerGame.stopGame(HungerGame.java:435)
	at com.randude14.hungergames.games.HungerGame.stopGame(HungerGame.java:424)
	at com.randude14.hungergames.commands.admin.StopCommand.handle(StopCommand.java:31)
	at com.randude14.hungergames.commands.Command.execute(Command.java:68)
	at com.randude14.hungergames.commands.CommandHandler.handleCommand(CommandHandler.java:40)
	at com.randude14.hungergames.commands.CommandHandler.onCommand(CommandHandler.java:22)
	at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44)
	... 15 more