Can’t listen to the audio with AirPods &Iphone XS

Dear Sir / Madam,

I have a problem with listening to Apple Music and other audio by my AirPods and IPhone. I have a connection between then, as it’s stated in seething in “Bluetooth” and also I can hear a signal that they have a tie. But then I cannot hear the music and in the «control station” there isn’t any opportunity to choose between iPhone and AirPods, there is stated that only IPhone available. Could you please help me with this problem?