Fatal error: Uncaught Error: Class "Sabre\VObject\Document" not found in /var/www/cal.digio.space/vendor/sabre/vobject/lib/Component/VCalendar.php:23 Stack trace: #0 {main} thrown in /var/www/cal.digio.space/vendor/sabre/vobject/lib/Component/VCalendar.php on line 23