User plugin not installed??

The User plugin is installed with JFBConnect when you install the main component. If it's not installed, that means there was either an error during the installation of the main component, or you uninstalled the plugin from the Joomla installation manager.

Please try re-installing the main component and see if that fixes the issue. The JFBConnect - User plugin is required for proper operation of JFBConnect to be able to log users from Facebook into your site.

Thanks,
Alex