Fatal error: Uncaught Error: Class 'Aws\Signature\SignatureV4' not found in /var/www/html/servicios/SDKAmazon/Aws/Signature/S3SignatureV4.php:20 Stack trace: #0 {main} thrown in /var/www/html/servicios/SDKAmazon/Aws/Signature/S3SignatureV4.php on line 20