Fatal error: Uncaught Error: Interface "Office365\Runtime\Auth\IAuthenticationContext" not found in C:\xampp\htdocs\vendor\vgrem\php-spo\src\Runtime\Auth\AuthenticationContext.php:14 Stack trace: #0 {main} thrown in C:\xampp\htdocs\vendor\vgrem\php-spo\src\Runtime\Auth\AuthenticationContext.php on line 14