Fatal error: Uncaught exception 'Facebook\Exceptions\FacebookSDKException' with message 'Required "app_id" key not supplied in config and could not find fallback environment variable "FACEBOOK_APP_ID"' in /home/zebradsh/seo.zebrawebs.com/Upload/core/library/facebook/Facebook.php:139 Stack trace: #0 /home/zebradsh/seo.zebrawebs.com/Upload/core/controllers/facebook.php(39): Facebook\Facebook->__construct(Array) #1 /home/zebradsh/seo.zebrawebs.com/Upload/core/app.php(162): require('/home/zebradsh/...') #2 /home/zebradsh/seo.zebrawebs.com/Upload/index.php(25): require('/home/zebradsh/...') #3 {main} thrown in /home/zebradsh/seo.zebrawebs.com/Upload/core/library/facebook/Facebook.php on line 139