Fatal error: Uncaught Facebook\Exceptions\FacebookSDKException: Required "app_id" key not supplied in config and could not find fallback environment variable "FACEBOOK_APP_ID" in /home/clients/e2da29d65b8d48af6757c5822b3bb6c8/web/allomediateur.com/2018/wp-content/plugins/nextend-facebook-connect/Facebook/Facebook.php:139 Stack trace: #0 /home/clients/e2da29d65b8d48af6757c5822b3bb6c8/web/allomediateur.com/2018/wp-content/plugins/nextend-facebook-connect/nextend-facebook-connect.php(160): Facebook\Facebook->__construct(Array) #1 /home/clients/e2da29d65b8d48af6757c5822b3bb6c8/web/allomediateur.com/2018/wp-content/plugins/nextend-facebook-connect/nextend-facebook-connect.php(123): new_fb_login_action() #2 /home/clients/e2da29d65b8d48af6757c5822b3bb6c8/web/allomediateur.com/2018/wp-includes/class-wp-hook.php(286): new_fb_login('') #3 /home/clients/e2da29d65b8d48af6757c5822b3bb6c8/web/allomediateur.com/2018/wp-includes/class-wp-hook.php(310): WP_Hook->apply_filters(NULL, Array) #4 /home/clients/e2da29d65b8d48af6757c5822b3bb6c8/ in /home/clients/e2da29d65b8d48af6757c5822b3bb6c8/web/allomediateur.com/2018/wp-content/plugins/nextend-facebook-connect/Facebook/Facebook.php on line 139