CodeIgniter新闻/视图不起作用，404页's

我目前正在学习CodeIgniter的方式，我需要一些教程的视图新闻部分的帮助。它显示一个404页面。我的网站是Tristans.tk。点击新闻，然后点击其中一个标题。下面是我的代码:

这是我的模型:

class News_model extends CI_Model{
    public function __construct(){
        $this->load->database();
    }
    public function get_news($ID=FALSE){
        if($ID===FALSE){
            $query=$this->db->order_by("post_time", "DESC")->get('news');
            return $query->result_array();
        }
        $query=$this->db->get_where('news',array('ID'=>$ID));
        return $query->row_array();
    }
}

这是新闻控制器:

class News extends CI_Controller{
    public function __construct(){
        parent::__construct();
        $this->load->model('news_model');
    }
    public function index(){
        $data['news'] = $this->news_model->get_news();
        $data['title'] = 'News archive';
        $this->load->view('templates/header', $data);
        $this->load->view('news/index', $data);
        $this->load->view('templates/footer');
    }
    public function view($ID){
        $data['news_item'] = $this->news_model->get_news($ID);
        if (empty($data['news_item'])){
            show_404();
        }
        $data['title'] = $data['news_item']['title'];
        $this->load->view('templates/header', $data);
        $this->load->view('news/view', $data);
        $this->load->view('templates/footer');
    }
}

，这是视图:

<?php
print_r($news_item);
echo '<h2>'.$news_item['title'].'</h2>';
echo $news_item['content'];
?>

的路线:

$route['news/(:any)'] = 'news/view/$1';
$route['news'] = 'news';
$route['(:any)'] = 'pages/view/$1';
$route['default_controller'] = 'pages/view';

<?php foreach ($news as $news_item): ?>
<div class='post'>
    <h1 class='post_title'><a href="news/view/<?php echo $news_item['ID'] ?>"><?php echo $news_item['title'] ?></a></h1>
    <p class='post_time'><?php echo $news_item['post_time'] ?></p>
    <p class='post_content'><?php echo $news_item['content'] ?></p>
    <span class='comment_link'><a href="news/view/<?php echo $news_item['ID'] ?>">Comment</a></span>
    </div>
<?php endforeach ?>