Fatal error: Uncaught Error: Interface "Swift_Transport_EsmtpHandler" not found in /var/www/html/comercial/_lib/prod/third/swift/classes/Swift/Transport/Esmtp/AuthHandler.php:16 Stack trace: #0 {main} thrown in /var/www/html/comercial/_lib/prod/third/swift/classes/Swift/Transport/Esmtp/AuthHandler.php on line 16