Bukkit

03:34:51 [SEVERE] null
org.bukkit.command.CommandException: Unhandled exception executing command 'xp' in plugin XPConomy v1.1
        at org.bukkit.command.PluginCommand.execute(PluginCommand.java:42)
        at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:166)
        at org.bukkit.craftbukkit.CraftServer.dispatchCommand(CraftServer.java:479)
        at net.minecraft.server.NetServerHandler.handleCommand(NetServerHandler.java:821)
        at net.minecraft.server.NetServerHandler.chat(NetServerHandler.java:781)
        at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:764)
        at net.minecraft.serverhook.NetServerHandlerProxy.a(NetServerHandlerProxy.java:141)
        at net.minecraft.server.Packet3Chat.handle(Packet3Chat.java:34)
        at net.minecraft.server.NetworkManager.b(NetworkManager.java:229)
        at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:113)
        at net.minecraft.serverhook.NetServerHandlerProxy.a(NetServerHandlerProxy.java:83)
        at net.minecraft.server.NetworkListenThread.a(NetworkListenThread.java:78)
        at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:551)
        at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:449)
        at net.minecraft.server.ThreadServerApplication.run(SourceFile:492)
Caused by: java.lang.NumberFormatException: For input string: "redspike2"
        at java.lang.NumberFormatException.forInputString(Unknown Source)
        at java.lang.Integer.parseInt(Unknown Source)
        at java.lang.Integer.parseInt(Unknown Source)
        at me.snakecharmer3.xpconomy.XPConomy.Send(XPConomy.java:120)
        at me.snakecharmer3.xpconomy.XPConomy.onCommand(XPConomy.java:43)
        at org.bukkit.command.PluginCommand.execute(PluginCommand.java:40)
        ... 14 more