Sorry to hear that no-one has been able to help so far.
I doubt that is an error number. My guess would be that it is the unit's serial number, or some such thing. Either way, it sounds like you have either lost some basic settings, or have a corrupted hard drive or something like that.
What else is going on ... is the unit booting up?
Anyway, you may need some expert assistance. See your PM's.
