Fatal error: Uncaught Error: Class "Facebook\Helpers\FacebookCanvasHelper" not found in /var/www/html/pedido_novo/_lib/prod/third/facebookauth/src/Facebook/Helpers/FacebookPageTabHelper.php:34 Stack trace: #0 {main} thrown in /var/www/html/pedido_novo/_lib/prod/third/facebookauth/src/Facebook/Helpers/FacebookPageTabHelper.php on line 34