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The module cannot find the ID. I tried to insert it with or without www ( http://www.facebook.com/hopfrog.salerno - http://facebook.com/hopfrog.salerno ) but the result does not change.
The href is not correct?
I have tested your url in the page that generates the code that is provided by Facebook (http://developers.facebook.com/docs/reference/plugins/like-box/) and it returns the same error (find screenshot attached).
The module basically allows you to configure these parameters dynamically, so I think this is an issue with that instance of the page.
Anyway if you find the reason why is happening it would be great to post it here, so it can be useful for some other users in case they have the same error.
Certainly if I can solve the problem the talk here. For now I wrote to the assistance of Facebook.
I hope to update this post soon
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