Fatal error: Uncaught Error: Class "ILIAS\Export\ExportHandler\Consumer\ExportOption\BasicLegacyHandler" not found in /var/www/html/ilias/components/ILIAS/DataCollection/classes/class.ilDataCollectionExportOptionsXLSX.php:28 Stack trace: #0 {main} thrown in /var/www/html/ilias/components/ILIAS/DataCollection/classes/class.ilDataCollectionExportOptionsXLSX.php on line 28