Fatal error: Uncaught Error: Class 'Symfony\Component\Mime\Part\AbstractPart' not found in /var/www/alldocs/home/rprather/TIWebsite/simplesamlphp_idp/vendor/symfony/mime/Part/SMimePart.php:19 Stack trace: #0 {main} thrown in /var/www/alldocs/home/rprather/TIWebsite/simplesamlphp_idp/vendor/symfony/mime/Part/SMimePart.php on line 19