Fatal error: Uncaught Error: Class "Symfony\Component\Mime\Encoder\Base64Encoder" not found in /home/kardi/public_html/vendor2523/symfony/mime/Encoder/Base64MimeHeaderEncoder.php:17 Stack trace: #0 {main} thrown in /home/kardi/public_html/vendor2523/symfony/mime/Encoder/Base64MimeHeaderEncoder.php on line 17