We assume this error was displayed when you were trying to register your BlazerID. The first thing to do is be sure you are entering either your social security number (SSN), or if you are an employee, entering the 7-digit Oracle ID number assigned to you (these typically look like 10#####).
If you are a new UAB employee who started work within the past couple of weeks, it is very, very likely that your paperwork is still being processed to get you put into the Oracle employee database. In order to register a BlazerID (or set up your tax info, or direct deposit, or enter timesheets) you have to be in Oracle. The best course of action is try again tomorrow and see if the paperwork cleared overnight. If not, try again the day after that; the Phonebook is updated once a day, so it does not help to try registering again during the same day if you get this error.
If you continue to be unable to register your BlazerID after 7 to 10 days following your start date, or in particular if you are concerned about how you will be getting paid (since if you are not in Oracle, you cannot receive a regular paycheck), please check with your department's personnel administrator to see where are you in the workflow and if they have an estimated time when your paperwork will be completed.
If by some chance this all does not seem applicable to your situation, please contact us by e-mail at AskIT@uab.edu for individual assistance.