Appreciated, but I think that this is something Spotify itself should look at. It's crazy that I can't play certain songs. Also, their, re-install and install comes across as if there is something wrong with the install/os. I'm not running Windows, so that does not make a lot of sense, to me.
Changing my speaker selection worked for me. Now, let's talk about how an app that I pay over ten bucks each month for can't be intelligent enough to TELL the user that "this is what the situation is- change this and you'll be good to go again".
Million thanks, that did the trick for me as well!!! Unbelievable that the "standard output" gives this error message, but at least on my macbook pro this is the solution. Will check it when back home.