Fatal error: Uncaught Error: Call to protected method Kufer\Web\Webbasys\Includee\Ics\IcsExportKurstage::getFilename() from global scope in /home/www/relaunch2021/kuferweb/webbasys/ics.php:30 Stack trace: #0 {main} thrown in /home/www/relaunch2021/kuferweb/webbasys/ics.php on line 30