Aroud 5.5.0 Could not reconnect to the Audio/MIDI engine

since i tried to play around with fantasia i get the error message “Could not reconnect to the Audio/MIDI engine” when i want to start Ardour.
I reinstalled Ardour, reinstalled Jack, nothing helped.

When I start Jack it cannot connet to the Server.

With Alsa I can start Ardour.

Can anyone please help me? Thank you!

I installed AV Linux and everything works fine now.