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/hesapvad/public_html/facebook/vendor/facebook/graph-sdk/src/Facebook/Facebook.php:139 Stack trace: #0 /home/hesapvad/public_html/facebook/config.php(11): Facebook\Facebook->__construct(Array) #1 /home/hesapvad/public_html/facebook/index.php(5): require_once('/home/hesapvad/...') #2 {main} thrown in /home/hesapvad/public_html/facebook/vendor/facebook/graph-sdk/src/Facebook/Facebook.php on line 139