I also ran into the Error = -212 problems. I tried the method from Solutions , https://support.stardock.com/space/SHC/1260552209/Error:+212+or+Product+Keeps+Prompting+to+Activate, and that also did not work.
So I accidently found a different way to bypass this problem. And without deleting anything.
Open Start menu, and right click on the program i.e. Fences.
Select more > Open File Locations
Right click on the program causing problems, and select Run as Administrator.
Solved.