title: How can I clear the Facebook Activity Feed plugin contents on my website
body: <p>I've installed the <a href="http://developers.facebook.com/docs/reference/plugins/activity" rel="nofollow">Facebook Activity Feed plugin</a> on my website some time ago, while the site was in deep development phase.  The site structure and URLs within the web app have changed significantly since then, however Facebook plugin did good job to capture all users 'likes' and 'shares' including those referring to deleted resources. And these activities are still shown in the plugin, some of them with unpleasant errors (because there is no resource at referred URL to provide Facebook with nice Open Graph METAs). </p>
  
  <p>What I would like to do is to <strong>reset the plugin so it 'forgets' all previous activities</strong>, however I can't find how to do this. Looks like the activity history is stored somewhere on Facebook side.</p>
  
  <p>The natural answer to my question would be to handle all those URLs that lead to not existing pages, but due to number of reasons I can't do that.
  Any help on this matter would be greatly appreciated!</p>