Jfb connect Fatal Error

Can you go into the Configuration and ensure that your API and Secret keys are set correctly? The line that's causing the problem is where JFBConnect is trying to retrieve your Application information from their server. Obviously, it shouldn't cause a fatal error like that, but I think if you can get those keys set up correctly, you'll be good to go.

Ah ha! I was incorrect in what I said earlier. While investigating another issue, we ran into this issue as well. It seems to be caused when with a combination of a PHP 5.0 or 5.1 library installed (PHP 5.2+ is not affected) and using the JSON wrapper that Facebook includes. If this is gibberish, don't worry.

If you are comfortable making a change to a file, we'd love to hear if the below change fixes your issue. It will definitely be included in the next release of JFBConnect as well:

File: /administrator/components/com_jfbconnect/assets/facebook-api/jsonwrapper/jsonwrapper_inner.php
On both lines, add the bolded section within the ( )
Line 9 and line 18:
$services_json = new Services_JSON(SERVICES_JSON_LOOSE_TYPE);

You're English was fine by the way. We understood the question, but didn't not realize the problem. Hopefully the above helps!