It looked like it worked briefly...

The reason it's not working is because the language setting for your site is strange. It's just "es". Usually, it's a country code followed by a locale value, like en_US (United States, English).

We use the Joomla configuration setting to determine your language, but if you know your proper language code, you can manually override our automatic setting. You can do so in the "Facebook API" area, in the "Facebook Language Locale" setting. If you're unsure of the proper locale, there's a link next to that setting for all supported language locales by Facebook.

Hope that helps, and good luck!

Great to hear you got it going. Should you run into any other issues, you know where to find us.

If you fall in love with JFBConnect, like you should, we'd love it if you'd consider leaving a review on the Joomla Extension Directory. It's not certainly required, but definitely appreciated:
extensions.joomla.org/extensions/social-...ook-integration/7215