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 /var/www/html/mygoldendragon/system/vendor/facebook/Facebook.php:133 Stack trace: #0 /var/www/html/mygoldendragon/catalog/controller/module/fbconnect.php(16): Facebook\Facebook->__construct(Array) #1 /var/www/html/mygoldendragon/system/engine/controller.php(43): ControllerModulefbconnect->index(Array) #2 /var/www/html/mygoldendragon/catalog/controller/account/login.php(164): Controller->getChild('module/fbconnec...') #3 /var/www/html/mygoldendragon/system/engine/front.php(42): ControllerAccountLogin->index() #4 /var/www/html/mygoldendragon/system/engine/front.php(29): Front->execute(Object(Action)) #5 /var/www/html/mygoldendragon/index.php(281): Front->dispatch(Object(Action), Object(Action)) #6 {main} thrown in /var/www/html/mygoldendragon/system/vendor/facebook/Facebook.php on line 133