Fatal error: Uncaught Error: Class "Symfony\Component\Mailer\Envelope" not found in /home1/aihika/public_html/internal-software/vendor/symfony/mailer/DelayedEnvelope.php:24 Stack trace: #0 {main} thrown in /home1/aihika/public_html/internal-software/vendor/symfony/mailer/DelayedEnvelope.php on line 24