UI not opening in iOS 12

After the latest updated I was able to install, the user interface does not open anymore on iOS 12, the screen just stays with the logo.
I am also unable to stop the VPN from the iOS preferences (it just start on its own if I stop it).
Did you remove compatibility with iOS 12 but still let me install a broken version by any chance? I am unable to tell which version as it does not open...