Fatal error: Uncaught Error: Class "Sabre\VObject\Document" not found in D:\xampp\htdocs\pimcore\my-project\vendor\sabre\vobject\lib\Component\VCard.php:18 Stack trace: #0 {main} thrown in D:\xampp\htdocs\pimcore\my-project\vendor\sabre\vobject\lib\Component\VCard.php on line 18