Fatal error: Uncaught Error: Class [...] not found in [...]

Fatal error: Uncaught Error: Class 'MVC\Includes\HttpRequest\HttpRequest\HttpRequest' not found in /var/www/vhosts/s16956866.onlinehome-server.info/httpdocs/scheduler/index.php:23 Stack trace: #0 {main} thrown in /var/www/vhosts/s16956866.onlinehome-server.info/httpdocs/scheduler/index.php on line 23

<?php
   namespace scheduler;
 
   define('DS', DIRECTORY_SEPARATOR);
 
   use MVC\Controller\FrontController as FC;
   use MVC\Controller\ControllerFileSystemResolver as CFSR;
   use MVC\Includes\HttpResponse\HttpResponse as HttpRes;
   use MVC\Includes\HttpRequest\HttpRequest as HttpReq;
 
   /*include_once(dirname(__FILE__).DS."MVC".DS."Controller".DS."FrontController.php");
   include_once(dirname(__FILE__).DS."MVC".DS."Controller".DS."ControllerFileSystemResolver.php");
   include_once(dirname(__FILE__).DS."MVC".DS."Includes".DS."HttpResponse".DS."HttpResponse.php");
   include_once(dirname(__FILE__).DS."MVC".DS."Includes".DS."HttpRequest".DS."HttpRequest.php");
 
   */
   include(".".DS."MVC".DS."Controller".DS."FrontController.php");
   include(".".DS."MVC".DS."Controller".DS."ControllerFileSystemResolver.php");
   include(".".DS."MVC".DS."Includes".DS."HttpResponse".DS."HttpResponse.php");
   include(".".DS."MVC".DS."Includes".DS."HttpRequest".DS."HttpRequest.php");

// Instancen für den Request und Response werden erzeugt. Sie dienen der Server-/Client-Kommunikation.
   $req = new HttpReq\HttpRequest();
   $res = new HttpRes\HttpResponse();
 
   // Eine Instance des FileSystemControllers wird erzeugt und ein StandardUnterkontroller wird übergeben.
   $resolver = new CFSR\ControllerFileSystemResolver('Controller', 'AuthController');
     
   // Nun wird der Froncontroller des MVC-Modells geladen, welches - mitteld Resolver-Objektes - eine Unterkontrollerklasse
   // übergeben bekommt und führt dessen "run"-Methode aus.
   $controller = new FC\FrontController($resolver);
   $controller->run($req, $res);
?>

use MVC\Includes\HttpResponse as HttpRes;
use MVC\Includes\HttpRequest as HttpReq;