Error with account creation page

Hi,

   I do have a .aspx page which was working before and all of a sudden it started throwing out error. It is an account creation page where it automatically creates a record in the DB and now when we enter all the information and click the button save its throwing "AN ERROR OCCURED AND HAS BEEN LOGGED". Can somebody give me the tips where i can look into and make sense of what is going wrong with that particular page on the  application.

thanks