Fatal error: Uncaught Error: Class "core\router\schema\response\abstract_response" not found in /srv/www/htdocs/moodle/lib/classes/router/schema/response/payload_response.php:37 Stack trace: #0 {main} thrown in /srv/www/htdocs/moodle/lib/classes/router/schema/response/payload_response.php on line 37