Greetings,
Never Used That App, Does The Internet Works With Some Things Or Doesn't For Anything? If That's A Yes, Hold The Icon/Open The Recent Apps > Open App Info > Permissions > Network, Is It Toggle To Allow?
If Yes, Then We Have To Discuss More...
It'll Definitely Be Trying To Use The Google's FCM (Or Something Similar) To Allocate The Media
Installing The Play Service (Preferably In The Private Space Or Another Profile Depending On The Threat Model) Might Be Able To Solve The Problem
Hope This Helps!