Phalcon\Mvc\Dispatcher\Exception: Multiple\Frontend\Controllers\EsVeController handler class cannot be loaded

<?php
#phpinfo();die;
#print_r($_SERVER);die;
 
 
try {
    
    /**
     * Read the configuration
     */
    $config = include __DIR__ . "/../app/_config/config.php";
 
    /**
     * Read auto-loader
     */
    include __DIR__ . "/../app/_config/loader.php";
 
    /**
     * Read services
     */
    include __DIR__ . "/../app/_config/services.php";
 
    /**
     * Handle the request
     */
    $application = new Phalcon\Mvc\Application($di);
 
     // Register the installed modules
    $application->registerModules([
        'frontend' => [
            'className' => 'Multiple\Frontend\Module',
            'path'      => '../app/frontend/Module.php'
        ],
        'backend'  => [
            'className' => 'Multiple\Backend\Module',
            'path'      => '../app/backend/Module.php'
        ] 
    ]);
 
     $response = $application->handle( $_SERVER["REQUEST_URI"] );
    
     // Get content and minify it
    $content = $response->getContent();
    #$minifiedContent = minifier($content);
 
    // Set the minified content back to the response object
    #$response->setContent($content);
    
    // Send the response to the client
    $response->send();
 
} catch ( \Phalcon\Support\Debug\Exception $e) {
 
 
      $message = get_class($e). ": ".$e->getMessage(). "\n"
         . " File=". $e->getFile(). "\n"
         . " Line=". $e->getLine(). "\n"
         . $e->getTraceAsString() . "\n";
      
       /* $logger = new \Phalcon\Logger\Adapter\File($config->application->logDir.'error.log');
        $logger->error($message);*/
        
        echo $message;
 
        ########################## 
        ##### Debug deaktivieren on live: 
        #$debug = new \Phalcon\Debug();
        #die($debug->listen()->onUncaughtException($e));
      
}
 
 
 
 
function minifier($code) {
    $search = array(
          
        // Remove whitespaces after tags
        '/\>[^\S ]+/s',
          
        // Remove whitespaces before tags
        '/[^\S ]+\</s',
          
        // Remove multiple whitespace sequences
        '/(\s)+/s',
          
        // Removes comments
        '/<!--(.|\s)*?-->/'
    );
    $replace = array('>', '<', '\\1');
    $code = preg_replace($search, $replace, $code);
    return $code;
}