Fatal error: Uncaught Error: Interface "Symfony\Component\Form\DataTransformerInterface" not found in /home/ntpcbgtpp/public_html/mat1/vendor/hshn/base64-encoded-file/src/Form/DataTransformer/FileToBase64EncodedStringTransformer.php:14 Stack trace: #0 {main} thrown in /home/ntpcbgtpp/public_html/mat1/vendor/hshn/base64-encoded-file/src/Form/DataTransformer/FileToBase64EncodedStringTransformer.php on line 14