Something on your site is loading the following tag into the page:
<meta property="og:image" content="http://omriron.com/http://srv1.jpg.co.il/6/53937f6ee11ff.jpg" />
That's *not* from JFBConnect. I'm not sure what's adding it, but you'll need to determine the cause and remove it. Then, things should start working properly. If not though, just let us know, and we'll gladly help investigate.
Thanks,
Alex