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/mjhuadwf/public_html/includes/facebook/Facebook.php:139 Stack trace: #0 /home/mjhuadwf/public_html/fb_connect.php(29): Facebook\Facebook->__construct() #1 /home/mjhuadwf/public_html/router.php(113): require_once('/home/mjhuadwf/...') #2 {main} thrown in /home/mjhuadwf/public_html/includes/facebook/Facebook.php on line 139