[Error occured at line 597] throw new FacebookUnexpectedDataException();

I’m getting both errors. The App ID and App Secret is correct. I don’t have any problems with Facebook Page Publish for any other sites… Except this one. Getting two errors:

Facebook returned an unexpected dataset. Try to resolve this issue, update the plugin or inform the author about the problem.
[Error occured at line 597]

Your application’s access permissions could not be granted.

&

Some or all access permissions are missing. Please click the button Grant access rights! and authorize the plugin to post to your Facebook profile or page.
[Error occured at line 774]

Your page or profile’s access permissions could not be verified.

I already made the standard line 774 correction as shown in previous threads. It worked fine (had to grant access every time I logged in to WP dashboard and made new post – but it worked). Then all of a sudden for no reason it stopped working..

Anybody got a solution to this? My line 597 is:

throw new FacebookUnexpectedDataException();

Thanks,
Scott

http://wordpress.org/extend/plugins/facebook-page-publish/