The app was blocked by the privacy feature of Lineage OS. After unblocking I could at least enter my number which was necessary because of a new installation for the purpose of attempted error correction. Got 6 digit SMS PIN. But had to enter my 4-digit PIN. Reset using chat tries. Support request ended without feedback. After restarting the app, I was able to define PIN. App crashes and PIN does not work. Reinstalled. Again received 6-digit SMS-PIN. Now you go.
['online-experience.app-website.-1']