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/new.charivna-mit.com.ua/application/Facebook/Facebook.php:139 Stack trace: #0 /home/new.charivna-mit.com.ua/application/Accounts/accounts.facebook.auth.class.php(33): Facebook\Facebook->__construct(Array) #1 /home/new.charivna-mit.com.ua/application/Accounts/accounts.facebook.relink.php(21): fbAuth->getAuthLink() #2 /home/new.charivna-mit.com.ua/application/core/core.php(402): include_once('/home/new.chari...') #3 /home/new.charivna-mit.com.ua/index.php(27): include('/home/new.chari...') #4 {main} thrown in /home/new.charivna-mit.com.ua/application/Facebook/Facebook.php on line 139