Spotify suddenly stops playing music while in second plan

[Saltori]

It just needs to go to another screen which is not of Spotify app and it suddenly stops to play. 

It plays the song, when I go off to home screen or another app it stops. Spotify keeps opened but not running. 

I tried around the internet to fix it but as you may know it didn't happen until now. 

I am using a Xiaomi Redmi2.  

[Joe]

Turn off any power saving options and exclude spotify from the android power management feature.