Fatal error: Uncaught Error: Class 'Aws\Signature\SignatureV4' not found in /home/app/htdocs/ninja/vendor/aws/aws-sdk-php/src/Signature/S3SignatureV4.php:10 Stack trace: #0 {main} thrown in /home/app/htdocs/ninja/vendor/aws/aws-sdk-php/src/Signature/S3SignatureV4.php on line 10