My Spotify app on my iPhone 4S is not displaying any of my playlists. "Local Files" and "Starred" appear, however will not load any of the songs. Under my "saved songs" only one is listed. I have the app installed on my iPhone 5S, and it works just fine. I have tried uninstalling and reinstalling the app, and nothing has changed. If I search songs, I can play them but usually they freeze in the middle (the song is playing but no sound) or when the next song comes on, it will not load.