General :: Grep: Return An User Message When No Hits?

I have ASCII files to parse that 48 hours old or more ; I can identify them like so

Code:
find . -name "FILE*TXT" -mtime +1 -exec ls -ltas '{}' ';'

Some files have a list of hardware errors (we test electronic components), some have none. If the file name has no errors, I still want to display a message like so

Code:
grep ^err R*VER && echo "No error"
FILEA.TXT:err->USB3910err
FILED.TXT:err No Error

This grep statement works but it seemingly overrides the find() statement above if I run both at the same time... How can I combine the two statements to create a report that lists the filename and error(s) like so

Code:
FILEA.TXT Button3320err
FILEB.TXT USB3235err
FILEC.TXT IR Remote2436err
FILED.TXT No error

Is it possible to return "No error" with the file name without error?