Fatal error: Uncaught Error: Class "yii\base\Component" not found in /users/quirl/www/filemanager/spark/protected/humhub/components/export/SpreadsheetExport.php:61 Stack trace: #0 {main} thrown in /users/quirl/www/filemanager/spark/protected/humhub/components/export/SpreadsheetExport.php on line 61