not accessible" "add" "activate

Hello, I have been stuck for DAYS trying to figure out how to solve this issue. I have used Parallels for years but for some reason my product is no longer linked to my account. I would like to manage my payment options, but I can't because there is no product to manage. I cannot contact anyone...

After many operations the Option "Activate Access" of parallel acces menu stay on "Not accessible" and I have no way to add my computer - Activate access buton does nothing OS : Catalina 10.15.3 Parallels Access 5.5.0 (36430) Catalina access autorisations are done Acces to other computers work Fine