Fatal error: Uncaught Error: Interface "Symfony\Component\Serializer\Mapping\Loader\LoaderInterface" not found in D:\htdocs\SuiteCRM\tmp\package\upgrade\SuiteCRM-8.9.1-extracted\vendor\symfony\serializer\Mapping\Loader\AttributeLoader.php:35 Stack trace: #0 {main} thrown in D:\htdocs\SuiteCRM\tmp\package\upgrade\SuiteCRM-8.9.1-extracted\vendor\symfony\serializer\Mapping\Loader\AttributeLoader.php on line 35