In this thread we collect error codes. So If you know the meaning of an error code, post it here together with the related game.
The 23xxx codes are defined by me (= HTTP status code + 23000) and send on login.
Enter one or more error codes. Only codes with 5 or 6 digits are supported.
If you find an error code not supported by the error page, then post it here together with a short description.