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 /homepages/34/d593729602/htdocs/Script_PAG_MULTI_FR/includes/facebook/Facebook.php:139 Stack trace: #0 /homepages/34/d593729602/htdocs/Script_PAG_MULTI_FR/fb_connect.php(29): Facebook\Facebook->__construct(Array) #1 {main} thrown in /homepages/34/d593729602/htdocs/Script_PAG_MULTI_FR/includes/facebook/Facebook.php on line 139