you can't fix error codes. They are there to tell you whats wrong. Errorr 90000 just means you got disconnected and 3102 means you are logged online (ie say you tried to log on on two devices at once, you'll get 3102). What they fixed in beta was something that was causing error 90000 to keep people logged in for indefinite periods of time. Be more specific with your issue and maybe they can help you. They have a guideline for making threads on the forum. Use it.