[27-Sep-2020 18:23:01 UTC] PHP Fatal error:  Interface 'Symfony\Component\Serializer\Mapping\ClassMetadataInterface' not found in /home/spring17/public_html/xiaomigrate/vendor/symfony/symfony/src/Symfony/Component/Serializer/Mapping/ClassMetadata.php on line 19
[04-Oct-2020 05:30:23 UTC] PHP Fatal error:  Interface 'Symfony\Component\Serializer\Mapping\AttributeMetadataInterface' not found in /home/spring17/public_html/xiaomigrate/vendor/symfony/symfony/src/Symfony/Component/Serializer/Mapping/AttributeMetadata.php on line 19
[05-Oct-2020 13:35:32 UTC] PHP Fatal error:  Interface 'Symfony\Component\Serializer\Mapping\ClassDiscriminatorResolverInterface' not found in /home/spring17/public_html/xiaomigrate/vendor/symfony/symfony/src/Symfony/Component/Serializer/Mapping/ClassDiscriminatorFromClassMetadata.php on line 19
