Fatal error: Uncaught Error: Interface "Aws\Auth\AuthSchemeResolverInterface" not found in /home/fileflo/www/vendor/aws/aws-sdk-php/src/Auth/AuthSchemeResolver.php:16 Stack trace: #0 {main} thrown in /home/fileflo/www/vendor/aws/aws-sdk-php/src/Auth/AuthSchemeResolver.php on line 16