Hi Philippe,
Sorry for the delay, we are pretty busy right now at furioos.
I checked your shared link but your quota is full for this month it’s the reason why no session can be launched (PC and mobile). It display “internal server error” instead of a clear message for the full quota (we gonna fix this).
I made a test with some of our apps on our furioos account and everything gone well with iphone 7 ios 13 (i don’t have a Nokia to test it in your way). So I think it may comes from your app. I’m gonna download your app to test it on our side with our quota and tell you if it works for me.
Thank’s for your patience and for improving furioos 🙂
Best,