Scansnap Home - "The destination folder (image saving folder) is invalid"

My Scansnap ix500 won’t scan. The message in Scansnap Home is “The destination folder (image saving folder) is invalid” =- I have assigned new folders multiple times with no luck. Our office work is grinding to a halt. Using OSX Mojave - any suggestions?

I got this message as well. After I COMPLETELY
uninstalled, restarted and reinstalled, all was well.

Have you tried that?

Yes I uninstalled, reinstalled ScanSnap Home and still get the same message