Fatal error: Uncaught Error: Interface "Symfony\Component\Serializer\Normalizer\NormalizerInterface" not found in /home/irishdeedsindex/public_html/blog/concrete/vendor/symfony/serializer/Normalizer/ContextAwareNormalizerInterface.php:19 Stack trace: #0 {main} thrown in /home/irishdeedsindex/public_html/blog/concrete/vendor/symfony/serializer/Normalizer/ContextAwareNormalizerInterface.php on line 19