This code is being included on the page:
<script src="http://connect.facebook.net/en_US/all.js" type="text/javascript"></script>
<script type="text/javascript">
FB.init({appId: '340486642645761', status: true, cookie: true, xfbml: true});
</script>
That's including the old Facebook Javascript library which is not compatible with the newer Facebook library that JFBConnect now uses (and Facebook recommends).
That block is also using a different Facebook AppID than the one set for JFBConnect, which will cause you other issues.
You'll need to disable that whole block from showing up in the page.
I hope that helps,
Alex