Fatal error: Uncaught Error: Class "Aws\Api\Serializer\RestSerializer" not found in /mnt/VenusReview/review/lyrasoft/dva/pr-2436/vendor/aws/aws-sdk-php/src/Api/Serializer/RestJsonSerializer.php:11 Stack trace: #0 {main} thrown in /mnt/VenusReview/review/lyrasoft/dva/pr-2436/vendor/aws/aws-sdk-php/src/Api/Serializer/RestJsonSerializer.php on line 11