Fatal error: Uncaught Error: Class "Sabre\VObject\Component" not found in C:\xampp\htdocs\baikal\vendor\sabre\vobject\lib\Component\VAvailability.php:18 Stack trace: #0 {main} thrown in C:\xampp\htdocs\baikal\vendor\sabre\vobject\lib\Component\VAvailability.php on line 18