Can’t uninstall

Greetings. My subscription for the Clone extension expired and at this time it’s no longer needed. Secondary to the extension being installed, I cannot update to a new version. A search revealed that I should uninstall the plugin, then reinstall the free version. The problem is I can’t uninstall. When I make the attempt a window of sorts appear at the bottom of the screen. It contains options for indicating my reasons for uninstalling. None of those options work. There isn’t a URL attached to any of the choices, including the “skip” option. Clicking on them does nothing which results in the plugin still active, not working and me being unable to anything with it.