1. Ubuntu 16.04 LTS
2. Free account
4. Spotify freezes (It does not respond to user actions, but the music continues to play) when displaying ads (I'm not sure, but I think that only when displaying kinder pingui ad).The application also shuts down normally (but with a delay).
5. Just wait for the shows of advertising (I notice only when displaying kinder pingui).
P.S I live in Turkey. And judging by the text of an advertisement for the Turkish speaking people. This advertising can not be in other countries.
P.P.S Sorry for bad English.