That was for Windscribe, I was going back and forth between PIA during troubleshooting. And during that time I messed up the wg0 config file, but I got it fixed. Thanks for fixing the issue!
I am also still having the same issue with my VPN since the update. I tried rolling back, using the :test and :latest versions and still can't get into the UI. The VPN works (I tried both PIA and Windscribe and with Deluge), so hoping for a fix. Deluge works with my VPN, but prefer this features of qBittorrent. My log is attached: supervisord.log