Fatal error: Uncaught Error: Class "Office365\Runtime\OData\ODataFormat" not found in C:\xampp\htdocs\vendor\vgrem\php-spo\src\Runtime\OData\AtomFormat.php:9 Stack trace: #0 {main} thrown in C:\xampp\htdocs\vendor\vgrem\php-spo\src\Runtime\OData\AtomFormat.php on line 9