Fatal error: Uncaught Error: Class "core\router\schema\objects\type_base" not found in /srv/www/htdocs/moodle/lib/classes/router/schema/objects/stacktrace.php:31 Stack trace: #0 {main} thrown in /srv/www/htdocs/moodle/lib/classes/router/schema/objects/stacktrace.php on line 31