Fatal error: Uncaught Error: Interface "Symfony\Component\Serializer\Encoder\EncoderInterface" not found in /home/.sites/114/site713/web/energiepackung2024/vendor/symfony/serializer/Debug/TraceableEncoder.php:28 Stack trace: #0 {main} thrown in /home/.sites/114/site713/web/energiepackung2024/vendor/symfony/serializer/Debug/TraceableEncoder.php on line 28