Hi there, thank you for posting on the forum! Try signing out of the Mozilla VPN (you can do this by going to the gear icon on the top right of the application, then scrolling down to "Sign out"), uninstalling it, re-downloading it, and reinstalling it. The sign out is an important part of the process due to deleting some files that otherwise don't get purged. If you having further issues, we would need some more information from you. Would it be possible for you to contact us through the app directly? Please note that Mozilla VPN is only compatible with the following Linux devices: Ubuntu 18.04 LTS (Bionic Beaver) Ubuntu 20.04 LTS (Focal Fossa) Ubuntu 21.04 (Hirsute Hippo)