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/visitor9/public_html/versatilecareer.com/include/Facebook/Facebook.php:144 Stack trace: #0 /home/visitor9/public_html/versatilecareer.com/extensions/login-facebook.php(17): Facebook\Facebook->__construct(Array) #1 /home/visitor9/public_html/versatilecareer.com/include/Extension.class.php(63): include('/home/visitor9/...') #2 /home/visitor9/public_html/versatilecareer.com/index.php(81): Extension->Process() #3 {main} thrown in /home/visitor9/public_html/versatilecareer.com/include/Facebook/Facebook.php on line 144