Fatal error: Uncaught Error: Class "ApiPlatform\Serializer\AbstractCollectionNormalizer" not found in D:\htdocs\SuiteCRM\vendor\api-platform\core\src\Hal\Serializer\CollectionNormalizer.php:29 Stack trace: #0 {main} thrown in D:\htdocs\SuiteCRM\vendor\api-platform\core\src\Hal\Serializer\CollectionNormalizer.php on line 29