[Plugin: Facebook] Error Publishing To Author's Timeline

I can’t get the Facebook Social Publisher to publish to my author’s timeline. This is the error code I’m getting> Failed posting to your Facebook Timeline. Error: {“message”:”Object at URL ‘http://www.gregcphotography.com/2012/10/05/test-123/’ of type ‘article’ is invalid because the given value ” for property ‘og:image:url’ could not be parsed as type ‘url’.”,”type”:”Exception”}

Please help! This is driving me crazy.

Thank you.

http://wordpress.org/extend/plugins/facebook/