There could be a few reasons for that. The <title> tag on that page is what the og:title tag is being set to, so it's possible that something is setting your standard meta title tags incorrectly on the page and that should be investigated.
As for JFBConnect itself, since you're using Joomla Content, please ensure you have the Open Graph - Content plugin enabled. That should be able to take the actual article title and use it for the og:title tag. With that disabled, JFBConnect will use whatever is in the meta title tag, since we won't know enough about the extension being used for the current page to generate a better tag.
Hopefully, that's all it is and enabling the content plugin will get you going. If not though, let us know, and we'll gladly help investigate further.
Thanks,
Alex