Fatal error: Uncaught Error: Class "Symfony\Component\Mime\RawMessage" not found in /home/tubu/public_html/Opigno_D9_kedecs/opigno-composer/vendor/symfony/mime/Message.php:22 Stack trace: #0 {main} thrown in /home/tubu/public_html/Opigno_D9_kedecs/opigno-composer/vendor/symfony/mime/Message.php on line 22