WordPress SEO by Yoast is a great plugin but I'm experiencing some problems. I'm getting a 403 error when adding a Facebook admin underneath the social tab. It didn't cause any problems before because I remember setting this up a long time ago. At the moment I have included the FB:Admins and FB:App_ID manually.
Have a look here: http://www.paulolyslager.com
Any help would be welcome!