Error EBAB03 F1:The Parament is incorrect. Unable to seek the specified offset.

Help - I’m running Norton Ghost 14.0  and trying to create a backup of my C:/ drive to external WD World Book via Esata.  Initially, I had another problem, but solved it with updating registry with adding SymSnapService.  So I can now at least start to backup my C: drive.  However, it starts to back up the drive, but then stops and provides the error above.  It also lists Error e7D10020 running job…  So I’m not sure  what to do now?  Thanks