This thread is not for specific source issues.
"Server maintenance. Please try again later!
This error is displayed when the client could not connect to the authentication / account server. Check the IP address and port in the client. Restart it after a change is made and try again. Make sure your ports are open as well and that you're using a publicly accessible IP address or domain."
If that bit helped you great; if not, you need to get more specific help on whatever thread you got the source from.
"Server maintenance. Please try again later!
This error is displayed when the client could not connect to the authentication / account server. Check the IP address and port in the client. Restart it after a change is made and try again. Make sure your ports are open as well and that you're using a publicly accessible IP address or domain."
If that bit helped you great; if not, you need to get more specific help on whatever thread you got the source from.