Fatal error: Uncaught Error: Interface "Symfony\Component\Mailer\MailerInterface" not found in /home/exklusivbeautysa/public_html/vendor/contao/core-bundle/src/Mailer/ContaoMailer.php:23 Stack trace: #0 {main} thrown in /home/exklusivbeautysa/public_html/vendor/contao/core-bundle/src/Mailer/ContaoMailer.php on line 23