Facebook login provide this return:
http://iota.estate/index.php/en/?option … 86cbd416=1
Site and extension with all social was configured and works normally up end of subscription.
>>> When my subscription expires, can I continue using the extension?
Yes! Our extensions will continue working after your subscription expires. Once expired, you will lose access to new releases, support and the use of our auto-configuration tools.
JFBConnect doesn't change it's behavior in any way after your subscription expires. If you're getting that error, it means something else has changed and causing issues. If you can give more details on what you're doing above, that could help.
The latest version of JFBConnect is v7.2.2 which has some compatibility updates with Joomla 3.8 as well.