ElTioRufi on "[Plugin: WP Facebook Open Graph protocol] Error in pages and search results pages without images"

First, sorry for my poor english.

I have errors in pages that doesn't have any image. Also, if I do a search, and no result is found, I have the same error:

For example: http://rufi.nosolowindows.com/product-category/juegos/
And results page: http://rufi.nosolowindows.com/?s=fermin

If there's no image it will have always the same error?

Thanks.

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