GUMP::errors PHP Method

    public function errors()
    {
        return $this->errors;
    }

 public function register_post()
 {
     $gump = new GUMP();
     $form = $gump->sanitize($_POST);
     $gump->validation_rules(array("firstname" => "required|valid_name", "lastname" => "required|valid_name", "street" => "required|street_address", "zip" => "required|numeric,min_len=4", "city" => "required", "country" => "required", "email" => "required|valid_email", "password" => "required", "password_verify" => "required"));
     $validation = $gump->run($form);
     if ($validation === false) {
         $errors = $gump->errors();
         for ($i = 0; $i < count($errors); $i++) {
             $this->form[$errors[$i]["field"]]["error"] = true;
         }
     } else {
         if ($user = (new Login())->createLogin($form["email"], $form["password"], $form["company"], $form["firstname"], $form["lastname"], $form["street"], $form["zip"], $form["city"], $form["country"])) {
             $session = new \Base\Session();
             $session->set("user_id", $user->getId());
             (new Request())->redirect("dashboard");
         }
     }
     $this->assign("error_message", "E-Mail oder Passwort falsch.");
     $this->register();
 }