FLStudio, with an XLR cable in the microphone input on the sound card and my headphones on the headphone output on the sound card.
I hit the sound card with the guitar and the cable popped out from the computer ...
soon as I open FL, it disconnects and vanishes from the list in Audio- and Midi-settings. I have the latest drivers and latest version on FL, also running the latest Catalina (15.2 i think). Thank you for the help! ...