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 Server Status page on 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, make sure you re-open both the Nexon Launcher and the game.
If you are still experiencing issues please contact us via the "Submit a Request" button at the bottom of the page and let us know if you followed all instructions on this page.