Attempted to start an invalid broadcast session

Hello, and first off HELP!!! I’ve now tried multiple times now with multiple applications to livestream Infinite Flight to YouTube on my iPhone (IPhone XR 128GB). I’ve now used Streamlabs, and MobiStream and each time it will run fine for an undetermined amount of time (usually around 30 min) and then pop a message up on the screen saying:

Screen broadcast

Live Broadcast to Streamlabs Has

Stopped Due to: attempted to start

An invalid broadcast session.

and says “ok” and “go to application” you also have to keep clicking ok or go to app multiple times before the message goes away. You can continue the livestream though by just pushing the screen recording button again, yet this is not ideal, infinite flight can end your flight if you pause for too long, witch is bad for long haul flights, so if you are away from your device you could accidentally end it. In my perspective, I’d like to be able to just let it run, in other words, set up a flight from Frankfurt To Los Angeles at night, go to sleep, and land in the morning, without a hitch. Again, I’ve done this before (without livestreaming (but would like too)). My internet speed is fine as I use cell service and can stream at 1080p. So what gives? (Image below)