iTunes 12.2.0.145

Just updated to the latest version of iTunes on my iMac.

Here are my problems.

If i go to the radio tab and click on a station, the top bar flashes then disappears. Nothing happens.

If i double click, the top bar says connecting, but nothing happens.

I clicked on connect tab, selected Rolling Stones and Beck to follow. I don't remember what i did next, but this what i have on my screen now, and i have no idea how to get back. I've clicked the back button a dozen or so times, but nothing happens.

Any help would be appreciated.