Music stop when msg notifications pop up

[Cactusfleuri]

I have Spotify on my huawei p20 android and every time I receive a msg or some notifications (but not all notifications, as for Facebook and Instagram) the music stop and I have to press play to listen the music  again and again... I've tried to reinstall the app, to log in and out, it still doesn't work correctly. Help please I don't pay 10€ to have to press play every 3 minutes.