Not being able to play downloaded songs

[Aymennajar]

Please help with this issue, I face on my iPhone 6s Plus iOS 14.3. 
I face a playing issue where an available downloaded song won’t play, it’ll just open and not play! This happens with 5 to 20 specific songs only, some other times I add a queue of songs when I’m not on shuffle and it wouldn’t be added and another queue is added on its own! 
also I face some lags while I’m using other apps and some times the app crashes, stops the music or freezes it for a couple of seconds. 

the Spotify is updated to the latest, please reply or email me with the fix.

[Ver]

Hey @Aymennajar,

Thanks for posting here in the Community 🙂

It's a good idea to give these steps a go and run a clean reinstall. This one is more thorough than then usual one.

Does the issue occur on another device? That way we can check if it's a device-related issue.

In case you're using any battery optimization or power saving apps, we'd suggest you deactivate them for Spotify.
 

Keep us posted! If you have questions, you know where to find us.