Fatal error: Uncaught Error: Class "Microsoft\Kiota\Authentication\PhpLeagueAccessTokenProvider" not found in /var/www/usonboard.com/vendor/microsoft/microsoft-graph-core/src/Authentication/GraphPhpLeagueAccessTokenProvider.php:29 Stack trace: #0 {main} thrown in /var/www/usonboard.com/vendor/microsoft/microsoft-graph-core/src/Authentication/GraphPhpLeagueAccessTokenProvider.php on line 29