What is the problem when Spotify Premium only plays one trac at a time? I have to press play-button after each song... This problem has continued for weeks, the program is reinstalled and does not help. Proviously no problem. There is no problem with my phone's network connections, the problem is repeated at several locations.
First, make sure that you don't have the repeat button turned on when playing your music. Further, do you have any other songs in the playlist you're trying to play from? If not, add some and try again.
If that doesn't help, reinstall the app and let us know if it works. A screenshot would be very helpful here.