See screenshot at:  https://community.spotify.com/t5/Android/Spotify-Free-Freeze-on-Ads/m-p/1836010#M87634

This bug has been posted by many people for several years now.

Could we get this prioritized with devs?  It forces your customers to quit the app and relaunch multiple times in a few hours, which is a sad experience.  Sad customers will go to youtube and pandora and so forth.