Fatal error: Uncaught Error: Interface "Aws\Crypto\MaterialsProviderInterfaceV2" not found in /srv/www/htdocs/moodle/lib/aws-sdk/src/Crypto/MaterialsProviderV2.php:4 Stack trace: #0 {main} thrown in /srv/www/htdocs/moodle/lib/aws-sdk/src/Crypto/MaterialsProviderV2.php on line 4