Fatal error: Uncaught Error: Interface 'Swift_Mime_Header' not found in /home/almasai/www/people/_old_site/vendor/swiftmailer/lib/classes/Swift/Mime/Headers/AbstractHeader.php:17 Stack trace: #0 {main} thrown in /home/almasai/www/people/_old_site/vendor/swiftmailer/lib/classes/Swift/Mime/Headers/AbstractHeader.php on line 17