IS the IRAD new to the system? It sounds like it wants the software keys for a feature, such as IRAD.
Here is the IRAD software keys procedure-
Press show at Software keys- enter the system id; press SHOW again-enter5 the 8 digit software key 1; same for keys 2 and 3. Then reboot.
If you don't have the codes, you might have to call Norstar at 1-800-466-7835 to get them;