Fatal error: Uncaught Error: Class "Sabre\VObject\Node" not found in C:\Apache24\htdocs\dle\engine\classes\composer\vendor\sabre\vobject\lib\Parameter.php:20 Stack trace: #0 {main} thrown in C:\Apache24\htdocs\dle\engine\classes\composer\vendor\sabre\vobject\lib\Parameter.php on line 20