First try the following guide: https://itch.io/t/46387/how-to-download-and-instal... - If that doesn't solve the problem, please take a screenshot of Clone Drone's main screen on your computer and upload it to an image hosting site. If you then post a web link to that here, I can take a look at what might be going on, if the former option doesn't fix the issue. Thanks!
-Cheers