The Vito B is a cute little camera, although unspectacular ( I also have this camera with a f/2.8 lens). It appears that you have the Voigtlander rangefinder, which is a very nice accessory to have, as zone focusing a 50mm lens doesn't leave much room for error.
As these cameras are roughly 50 years old by now, it's not surprising that the shutter isn't working properly. In fact, that's usually the rule and not the exception. As long as no one has forced any of the levers, it should clean up, and you'll have a nice classic camera that you can enjoy.
This camera came in two versions with two lenses. The first version had either the f/2.8 or f/3.5 Color-Skopar lens with a simple Galilean viewfinder. The second version offered both lenses with a Van Albada viewfinder that displayed framelines. The top deck of the second version is taller -- maybe 1/2 inch or so.