Fatal error: Uncaught Error: Interface 'Symfony\Component\Mime\Encoder\EncoderInterface' not found in /home/noct-c/www/tanakahashi/vendor/symfony/mime/Encoder/Rfc2231Encoder.php:21 Stack trace: #0 {main} thrown in /home/noct-c/www/tanakahashi/vendor/symfony/mime/Encoder/Rfc2231Encoder.php on line 21