Nostalrius Begins - Quality wow vanilla realm (1.12)

Hello. I created an account about a week ago. As i played though the game i'm starting to notice some interface options missing, and interactions in game not working. Among these the biggest one is my chat functions missing. I do not have a general tab for the chat and cannot access any of the functions. Any character i create on this account has the same issue. I created a separate account to try and duplicate the problem and everything works fine there. Is there a way to fix this as i do not want to have to start another character over from scratch.

Thank you for the reply. I Tried your suggestion. Still no luck. Only characters made on the first account has this problem. Dont know what else I can do.