Fatal error: Uncaught Error: Class "Microsoft\Kiota\Authentication\PhpLeagueAuthenticationProvider" not found in /var/www/usonboard.com/vendor/microsoft/microsoft-graph-core/src/Authentication/GraphPhpLeagueAuthenticationProvider.php:22 Stack trace: #0 {main} thrown in /var/www/usonboard.com/vendor/microsoft/microsoft-graph-core/src/Authentication/GraphPhpLeagueAuthenticationProvider.php on line 22