Problem with Spotify APK

This morning I was listening to spotify, then, it stopped working. My APK is the same one that my girlfriend is using and it totally works for her but for me, it says that "the app needs to be updated" and not even the actual songs appear anymore.

I remember a mail coming from Spotify that says that my version was going to get outdated and not supported anymore, though, why isn't my spotify apk working?