Fatal error: Uncaught Error: Class "ZipStream\Exception" not found in /srv/www/htdocs/moodle/lib/zipstream/src/Exception/SimulationFileUnknownException.php:13 Stack trace: #0 {main} thrown in /srv/www/htdocs/moodle/lib/zipstream/src/Exception/SimulationFileUnknownException.php on line 13