iTunes 12.3.0.44 radio stations issue

I want to start a station from an artist. For some artists it works. But for some it doesn't. For instance when i try to start a station from Steven Sharp Nelson, the top bar where the music plays, starts loading for a second and then the apple sign shows. And nothing happens after that. And sometimes when i listen to one of the few stations that work, suddenly the music stops and again the apple logo shows. I tried restarting my phone and my mac, cuz it happens to my iphone also. I tried "viewing my account", because that works for some people in some cases. But it didn't work in this case. Can you start a station from Steven Sharp? Oh and some of my stations that used to work, suddenly stopped working. Even the image for the station disappears. Only the title stays. iTunes is acting crazy!