Thank you for taking the time to report this bug and helping to make Ubuntu better. I suggest you to check if you have the package "rhythmbox-ubuntuone-music-store" installed.
$ dpkg -l | grep ubuntuone-music-store
Thank you for taking the time to report this bug and helping to make Ubuntu better. I suggest you to check if you have the package "rhythmbox- ubuntuone- music-store" installed.
$ dpkg -l | grep ubuntuone- music-store