Media unavailable V2.0.5

[M1KL83]

Carstream has been working great for the past couple years but today it has stopped.
I see the app on Android auto screen but when I select it either closes immediately or says media unavailable.
Phone is Samsung S10e.
I've tried restarting phone as well as vehicle.
Carstream app still works on my phone but no longer on vehicle screen.
Same phone and vehicle used since I first got CarStream.
Any help is much appreciated.

Have a great day.

M1KL83