Fatal error: Uncaught Error: Class "Aws\Api\Serializer\RestSerializer" not found in /home/oyaagyug/public_html/vendor/aws/aws-sdk-php/src/Api/Serializer/RestJsonSerializer.php:11
Stack trace:
#0 {main}
thrown in /home/oyaagyug/public_html/vendor/aws/aws-sdk-php/src/Api/Serializer/RestJsonSerializer.php on line 11