That's what it was. I must have forgot to save the old upgrade key.sounds like you're trying to active the plus version with your old key. You should have been sent a new key file.
If you have an AS+ key why would you want a trial license? Use this link; Use the key you got in your email , the new one for AS+ not the old one.Tried reverting to a trial license, and registering only the AS+ key. Still "The wrong product", according to AnyStream. Is there a possibility the new key was invalidated when, out of desperation, re-regging the basic key?