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