Paid for but no license

Been using this as a paid user for several years.

Now have a warning that there is no license, even though when I log in to supsystic my purchase is there with my key and it doesn’t expire until 2025. Attempting to activate this doesn’t work, “use activation gateway” does nothing.

Sent a support request 5 days ago and no response.

Is this plugin now unsupported? Do I need to cancel this and use a different option? I really don’t want to have to try to move thousands of markers to a new map!