I tryed ,list

Error accurate on Monstercraft - Bukkit 1.4.2 R0.1

Error:
2012-10-28 08:14:02 [SEVERE] [MonsterIRC - Critical error detected!]
2012-10-28 08:14:02 [SEVERE] java.lang.NullPointerException
2012-10-28 08:14:02 [SEVERE] at org.monstercraft.irc.ircplugin.IRC.isVoicePlus(IRC.java:519)
2012-10-28 08:14:02 [SEVERE] at org.monstercraft.irc.plugin.command.irccommand.List.execute(List.java:35)
2012-10-28 08:14:02 [SEVERE] at org.monstercraft.irc.plugin.managers.CommandManager.onIRCCommand(CommandManager.java:150)
2012-10-28 08:14:02 [SEVERE] at org.monstercraft.irc.plugin.managers.listeners.IRCEventListener.onMessage(IRCEventListener.java:27)
2012-10-28 08:14:02 [SEVERE] at org.monstercraft.irc.ircplugin.event.events.PluginMessageEvent.dispatch(PluginMessageEvent.java:2
2012-10-28 08:14:02 [SEVERE] at org.monstercraft.irc.ircplugin.event.EventMulticaster.fireEvent(EventMulticaster.java:114)
2012-10-28 08:14:02 [SEVERE] at org.monstercraft.irc.ircplugin.event.EventMulticaster.fireEvent(EventMulticaster.java:9
2012-10-28 08:14:02 [SEVERE] at org.monst

You Should be abel to get the full error yourself form console!

Yeah fixin it been busy. Already know of it (previously reported)