public function handleChecks()
    {
        $errors = [];
        foreach ($this->_config['checks'] as $name => $check) {
            if (empty($check)) {
                continue;
            }
            $result = $check['callback']();
            if ($result !== true) {
               $errors[] = $name . ': <br>' . $check['error'] . ' - ' . $result;
            }
        }
        if (!empty($errors)) {

            $this->response->statusCode(500);

            echo date('Y-m-d H:i:s') . ': ' . $this->_config['projectName'] . ' - ' . $this->_config['serverDescription'] . ' - Status Code: ' . $this->response->statusCode() . '<br><br> ';
            foreach ($errors as $error) {
                echo $error . '<br><br>';
            }
            die;
        }
        $this->_config['onSuccess']();
        die;
    }