What I need to enable?
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Yes of course. show less

Try now, it's working show less

Points like attached photo show less

Ok, I think I solved by myself with Google... The "Contacts API" was disabled. Now, the problem with Facebook persist. It's not Facebook specific, even with Google and LinkedIn I get the same error.

The error is:

Warning: ini_set(): A session is active. You cannot change the session module's ini settings at this time in /var/www/vhosts/wesportoutdoor.com/httpdocs/libraries/joomla/session/handler/joomla.php on line 45

Warning: Cannot modify header information - headers already sent by (output started at /var/www/vhosts/wesportoutdoor.com/httpdocs/libraries/joomla/session/handler/joomla.php:45) in /var/www/vhosts/wesportoutdoor.com/httpdocs/libraries/joomla/session/handler/joomla.php on line 105
Ooophs, we got an error: Failed to start the session because headers have already been sent by "/var/www/vhosts/wesportoutdoor.com/httpdocs/libraries/joomla/session/handler/joomla.php" at line 45.

I tried to repair Joomla DB tables and clean the tables "joomla_session" and "joomla_parainvite_sessions"... The Joomla installation and extensions are up to date! show less

I updated the question... I attach here Google API JSON, I can't add attachments in the update question link... I can add you as a member in IAM if you provide an email. Let's work on Google before going ahead with Facebook... show less

I'm sorry, I tryed again to configure the apps... I followed instructions and I can't figure what I'm doing wrong... Moreover, the configuration worked before update. Let try with google first. I'll give you FTP access and screenshots of Google configuration. show less

Ok, Mike. Now it seems to work properly. What changes have you done? What should I keep in mind in the future, when I'll update the configuration or the product? Please let me know. Thank you very much. show less