Fatal error: Uncaught Error: Interface "Aws\Signature\SignatureInterface" not found in /srv/www/htdocs/moodle/lib/aws-sdk/src/Signature/AnonymousSignature.php:10 Stack trace: #0 {main} thrown in /srv/www/htdocs/moodle/lib/aws-sdk/src/Signature/AnonymousSignature.php on line 10