Instant Roof

I purchased instant roof and have had 0 luck in getting the program to work. I have watched the tutorials, emailed the creator, and hired my computer support dude to see if they could figure out the problem.
Nothing. I even deleted the extension, re-purchased and downloaded, still the same results. I select the roof surface, select 2 opposing edges, select Make Roof…And then a dark flash and nothing.
My OS is windows 11 and am using SU 2023. I have had I R loaded before, and it did work but Nada Today I am afraid. Any ideas?