Can you refresh the Autotune error check again? We had an SSL configuration issue on our end with an old certificate and that portion should be involved.
A lot of times, it's because the application has not been configured correctly (specifically the redirect URLs), so make sure that you've followed our
FB application setup guide
.
If you've followed the guides and are still having issues, can you provide a URL (through the forum or contact us) where I can see the behavior of the Facebook social login button in action?
-Melissa