WotLK Game Crashing after logging in

[Senzai]

Im trying to play WOTLK on an old MacBook Pro that I assume is good enough to run the game (I've played classic on it and used to play wow on it back in the day). So I got the game downloaded and I can open the log-in screen, but as soon as I put in my email and password and click enter then game closes. No Error message, no warning. Anyone have any idea how to fix this issue?

[wabbatz]

Usually, you have to use you Warmane account name, not your e-mail.