Awesome! Glad to hear that helped narrow down what was happening. In the future, we'd recommend using a template override for your modifications so that you don't loose them when you upgrade. If you're unsure of what that is, just let me know and I'll explain.
As always, if you have any other questions or feedback, just let us know.
Finally, if you haven't already, please consider leaving a rating and review for JFBConnect, or our support, on the Joomla Extension Directory. It certainly isn't required, but is very appreciated:
extensions.joomla.org/extensions/social-...ook-integration/7215
Thanks,
Alex