Reinhold,
Facebook uses special Open Graph tags to set what the page would look like in a users feed, like the title, description and image to show. JFBConnect will try to set the title automatically using the meta title for the page. It sounds like the title may not be set on that page, which means JFBConnect can't set the og:title tag automatically.
If you're already adding the {JFBCLike} tag, you can add the following tag underneath it:
{SCOpenGraph title=Title for this page}That will set the title for your page and should let Facebook scan the page properly.
I hope that helps, but if you need anything else, just let me know.
Thanks,
Alex