This error can occur if:
- The server temporarily crashes or maintenance occurs while you’re logged in.
- You are disconnected due to a network error.
If this error occurs, please try the following steps.
- Check the MapleStory website and make sure that MapleStory isn't currently undergoing maintenance.
- Try logging in again after making sure that there aren't any issues with your network.
If you are still experiencing issues you can also view the Technical Support section of the MapleStory Community Forums.