FB Error – More Than One OG URL Specified

Hey Nick,
Love the plug-in, thanks for all your work. I keep getting an error, though. When I try to link a page (specifically, http://www.catchthedawn.org/angelitos/) to Facebook, the description does not show as it is previewed.

When I test it on FB Debugger (https://developers.facebook.com/tools/debug) this is the error I get:

Scrape Information

Response Code: 206
Fetched URL: http://www.catchthedawn.org/angelitos/
Canonical URL: http://www.catchthedawn.org/angelitos/
Errors That Must Be Fixed

More Than One OG URL Specified: Object at URL ‘http://www.catchthedawn.org/angelitos/’ of type ‘article:section’ is invalid because it specifies multiple ‘og:url’ values: http://www.catchthedawn.org/angelitos/, http://www.catchthedawn.org/angelitos/.
URLs

Graph API: https://graph.facebook.com/122713654605839
Scraped URL: See exactly what our scraper sees for your URL

Am I doing something wrong, or is this a code thing?

Thanks for any insight.

http://wordpress.org/extend/plugins/wp-open-graph/