Fatal error: Uncaught Error: Interface "Symfony\Component\Serializer\Encoder\EncoderInterface" not found in /home/intentexperts/public_html/it/install-dir/vendor/symfony/serializer/Encoder/YamlEncoder.php:24 Stack trace: #0 {main} thrown in /home/intentexperts/public_html/it/install-dir/vendor/symfony/serializer/Encoder/YamlEncoder.php on line 24