When is asks … Please provide a valid activation key … do they have to think up a ‘key’ that they should remember?? I don’t recall this being so.
Any help would be appreciated – thanks
I recently ran into this issue as well and found that troubleshooting the plugins associated with the site resolved the issue. There was a specific plugin that was causing the problem. I simply deactivated them and activated them by trial an error until I isolated the culprit. I realize this is an older post but maybe someone will benefit from this solution.