No Radio Stations on Web Player

[Alioth]

Hi, I use Firefox on a Mac OS X and usually play Spotify through the browser web player.  Recently, all my radio stations disappeared. When I go to the web player page, an error message comes up: "Oops, something went wrong. Please reload the page." But when I reload, nothing changes. There is also no radio button on the left side. The menu options are "Search", "Browse", "Your Music". If I try to play a song, nothing happens. The player comes up, but the minutes ticker does not move, and no sound plays. If I try to start a radio from a song, nothing happens at all.

However, on the ipad at work, my stations are still there, and everything functions as usual.