og:type invalid

Your tags look correct. In general, you shouldn't need to set the og:type of "article" as that's what JFBConnect will default your content to by default.

The first suggestions I'd recommend you check are:
* Go to the Joomla -> Global Configuration area. Set the "Use GZip Compression" setting to "No". There were reports last year from some users that that setting could cause Facebook to have issues scraping the tags from sites.
* Make sure your site is online and the page you're testing is publicly visible. If Facebook is redirected to the login page, or some other content automatically, issues will happen.

Beyond that, can you Private Message me the URL of a page that's having this issue? Once we see the output and can test further, we'll gladly help however we can.

Thanks,
Alex

Glad you got it resolved. Let us know if you run into other issues.

-Melissa