On Windows XP (32-bit), I have Sandboxie 5.06. I keep getting the message "Sandboxie is registered but the license should be reactivated now". When I try to activate, I get a message that it failed & something about the servers failed to respond. I googled for answers, but the last one I saw was in 2017. How can I "activate" the license I paid for? Thank you in advance.