Error Code : 11004?

I've been on Maple all day just fine same as yesterday, no errors, no DCing or anything. I logged off a bit earlier and now trying to log back in I'm getting this Error Code : 11004 error. Anyone know what's going on? I've checked for any Server Checks or such going on, but nothing.

 Spoiler

I got this yesterday so I ran my disk cleaner, cleaned registry and rebooted my laptop and it fixed. Not sure what went wrong in the first place.