Fatal error: Uncaught Error: Interface "Symfony\Component\Mailer\MailerInterface" not found in /home/claireha/public_html/FamilyTree/vendor/symfony/mailer/Mailer.php:29 Stack trace: #0 {main} thrown in /home/claireha/public_html/FamilyTree/vendor/symfony/mailer/Mailer.php on line 29