Fatal error: Uncaught Error: Interface "Sabre\VObject\Splitter\SplitterInterface" not found in /server/www/10.1.1.5/htdocs/vendor/sabre/vobject/lib/Splitter/ICalendar.php:22 Stack trace: #0 {main} thrown in /server/www/10.1.1.5/htdocs/vendor/sabre/vobject/lib/Splitter/ICalendar.php on line 22