FB connect doesn't work :S

Davide,
I'm not sure. We've never heard of Facebook reporting that an app is in Sandbox mode when it really isn't. Can you verify that the App ID you've set in JFBConnect is the same as the one you've disabled in the Facebook Apps area? Beyond that, the only thing I can suggest is to wait a few hours to make sure the updated setting in Facebook has propagated to all of their servers.

If it's still not working in 12 hours, let us know and we'll gladly investigate further. At that point, our recommendation will likely be to create a new Facebook App and try with that.. just to make sure it's not something glitchy with that app.

Thanks,
Alex

Can you go into the Facebook Developer area for the app you have configured on your site and then go into the "Developer Roles" area. In there, click "Add" in the "Developers" section and add the following ID: 1251253607

From there, we'll be able to see your Facebook App configuration and test on the front-end. If necessary, we'll ask for admin credentials to the site, but I just don't think that's needed right now.

Thanks,
Alex

Davide,
Your application is setup just fine. There's a few problems I see in your Joomla configuration though:
1) JFBConnect doesn't seem to have the AppID and/or secret key set. On your website, in the HTML, the AppId for JFBConnect isn't being set, so that's a big problem and needs to be fixed.
2) You have 2 other extensions adding the Facebook Javascript library, which are causing conflicts with JFBConnect:
a) Your Gavick template - You need to disable the social integration in the template settings and remove the Facebook AppId as well.
b) Something else - I'm not sure what, but right after the opening body tag is another inclusion of the Facebook Javascript library. This could be a module or plugin.. but it will need to be removed as well.

Our Autotune - Error Checker tool should show warnings about the above as well. Once fixed, it will show a "Pass" for all sections.

Let me know if that helps, but if you remove those and things still don't work, we'll gladly help.

Thanks,
Alex

No problem for the support, it's what we're here for. I'm glad we could help. As always, should you need anything else, 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