We haven't heard of that issue from any other users yet, so I don't have a definitive answer. 3.2.0.6 has been out for a few weeks, so if it was widespread, we would have heard by now. We also can't recreate the issue on our own sites.
With that said, what I'd recommend is trying to narrow it down further within JFBConnect. Please try:
1) Re-enable the JFBCSystem plugin
2) Disable the SocialProfiles - JomSocial plugin
3) Test again.
My guess is that the JomSocial pages will load correctly now. If that's the case, please:
a) Edit the /plugins/socialprofiles/jomsocial/jomsocial.php file. Around line 28, you'll see:
// Now do any initialization or defaultSettings setup required
if ($this->componentLoaded() && !JFactory::getApplication()->isAdmin())
include_once($this->_componentFolder . '/' . $this->_componentFile);
Delete all of those lines.
b) Re-enable the Social Profiles - JomSocial plugin.
c) Test again.
Hopefully, that will work. The above edit to that file is already in our 6.1 release, due out later today.. along with a ton of other features and fixes. We've also been testing with 3.2.0.6, so things *should* just work.
We'd love to have your feedback on the changes though.
Thanks,
Alex