I cant get it work on my site

Please go to the Facebook Developer Area and ensure your app is not in Sandbox mode.

Hopefully that's all it is, but if you still have issues, just let me know.

Thanks,
Alex

The page that you linked to above is the Joomla new user registration form. JFBConnect would never redirect to that form as we have our own registration process the user must go through.

My guess is that you have some sort of user registration plugin enabled that's forcing the user to that page for some reason. Can you check your authentication, system and user plugins to see if one of the plugins in there may be redirecting the user to try to register for some reason?

Let me know if that helps, but if not, we'll try to help however we can.

Thanks,
Alex

I just tried to register on the link you posted above. When I did, I was brought to (eugodkjent.eu/index.php/component/users/) which has a 404 error page with the following message:
404 - Komponenten ble ikke funnet

That was when I tried to register at eugodkjent.eu/index.php?option=com_users&view=registration

It seems like something is broken with registration in general on your site, and that will need to be investigated to determine what the problem may be.

Thanks,
Alex