Fatal error: Uncaught Error: Class "ilVirusScanner" not found in /var/www/html/ilias/components/ILIAS/VirusScanner/classes/class.ilVirusScannerClamAV.php:21 Stack trace: #0 {main} thrown in /var/www/html/ilias/components/ILIAS/VirusScanner/classes/class.ilVirusScannerClamAV.php on line 21