Fatal error: Uncaught Error: Class 'Symfony\Component\Mime\Header\AbstractHeader' not found in /home/noct-c/www/tanakahashi/vendor/symfony/mime/Header/MailboxHeader.php:25
Stack trace:
#0 {main}
thrown in /home/noct-c/www/tanakahashi/vendor/symfony/mime/Header/MailboxHeader.php on line 25