Fatal error: Uncaught Error: Class "Symfony\Component\Mime\Header\AbstractHeader" not found in /var/www/html/001-depreciados/freefi_backup_mercadopago_20251110_173353/vendor/symfony/mime/Header/MailboxListHeader.php:22 Stack trace: #0 {main} thrown in /var/www/html/001-depreciados/freefi_backup_mercadopago_20251110_173353/vendor/symfony/mime/Header/MailboxListHeader.php on line 22