Fatal error: Uncaught Error: Class "Aws\Credentials\Credentials" not found in /srv/www/htdocs/moodle/lib/aws-sdk/src/Identity/S3/S3ExpressIdentity.php:6 Stack trace: #0 {main} thrown in /srv/www/htdocs/moodle/lib/aws-sdk/src/Identity/S3/S3ExpressIdentity.php on line 6