"Spotify is misconfigured for Facebook login" ???

[Edinburgh]

Hi Guys

I keep recieving this message when trying to log in to Spotify via Facebook on the Kindle Fire HD.  I can log in no probs using a PC or laptop device but when I try to access it on the Fire I get the following message.

"Spotify is misconfigured for Facebook login.  Press Okay to go back to the application without connecting it to Facebook."

Any ideas how to solve this?

Thanks

Scott