Sometimes the user is not able to log in the account may be because the account has been hacked. It can be cured by asking
How to Change my AOL Password on my iPhone, by troubleshooting it. The user can add recovery information to his or her account in order to recover it when the data has been lost or corrupted. This information will help the user when he is setting a new password querying
How to Reset the AOL Password on iPhone?