2012-08-30 14:55:23 [SEVERE] null
org.bukkit.command.CommandException: Unhandled exception executing command 'mute' in plugin Freeze v1.3.1_1
	at org.bukkit.command.PluginCommand.execute(PluginCommand.java:42)
	at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:168)
	at org.bukkit.craftbukkit.CraftServer.dispatchCommand(CraftServer.java:601)
	at net.minecraft.server.NetServerHandler.handleCommand(NetServerHandler.java:878)
	at net.minecraft.server.NetServerHandler.chat(NetServerHandler.java:825)
	at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:807)
	at net.minecraft.server.Packet3Chat.handle(Packet3Chat.java:44)
	at net.minecraft.server.NetworkManager.b(NetworkManager.java:276)
	at net.minecraft.server.NetServerHandler.d(NetServerHandler.java:109)
	at net.minecraft.server.ServerConnection.b(SourceFile:35)
	at net.minecraft.server.DedicatedServerConnection.b(SourceFile:30)
	at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:608)
	at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:244)
	at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:501)
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:419)
	at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
	at com.puffybugs.Freeze.Freeze.onCommand(Freeze.java:88)
	at org.bukkit.command.PluginCommand.execute(PluginCommand.java:40)
	... 15 more