Radio of my own release not possible to start

[Jesmicas]

Plan: Premium

Country: Denmark

Device: Macbook Pro late 2013

Operating System: Mojave 10.14.6

My Question or Issue:

I put my first release on a newly created playlist and tried to start the radio. However, the Spotify web app keeps working on starting the radio but never get accomplishes the mission.

No difference whether I choose an old playlist or my new personal one.

• What to do to get the radio running?