Ok SORRY, this bug is not fixed, my mistake. I analyzed the situation now, here it comes:
When rhythmbox is started without any music in the "Music" folder in ubuntu, it will crash, it will always crash.
After I added an album in the Music folder rhytmbox will find it and crash and the "Stores" menu is missing on the left side. If I start rhythmbox one more time "Stores" will come up and everything will work.
Ok SORRY, this bug is not fixed, my mistake. I analyzed the situation now, here it comes:
When rhythmbox is started without any music in the "Music" folder in ubuntu, it will crash, it will always crash.
After I added an album in the Music folder rhytmbox will find it and crash and the "Stores" menu is missing on the left side. If I start rhythmbox one more time "Stores" will come up and everything will work.