License Doesnt Activate

I have installed the new version of Visual Products Configurator on our staging server. I then added the license key and activated the license and received a message that the license was successfully activated. However, when I go to the actual front-end web page I continue to get the following error. “You have not activated your license yet. Please, activate it in order to use this plugin.”

I tried uninstalling and reinstalling the plugin, creating a whole new staging site and retried again, but nothing works.

I contacted the plugin developer multiple times but get very basic instructions like try pasting your license key again and saving. That’s def not the issue, and WP already says the activation was successful???

Can I get some real help here? This is sucking up a lot of our time unnecessarily.

Thanks

The page I need help with: [log in to see the link]