Fatal error: Uncaught Error: Class "Symfony\Component\Mime\Encoder\Base64Encoder" not found in /home/gbc4/public_html/qrme/vendor/symfony/mime/Encoder/Base64MimeHeaderEncoder.php:17 Stack trace: #0 {main} thrown in /home/gbc4/public_html/qrme/vendor/symfony/mime/Encoder/Base64MimeHeaderEncoder.php on line 17