help uploading a codeigniter project to a live server

[eluser]webdevdesi[/eluser]
I had this codeigniter project that works on localhost, but not on a live server. The links don't work and some of the views won't either. It get a message that says that a requested file can not be loaded.

The server is www.000webhost.com
I think it has problem with the controllers and some views. The main content view doesn't show, but the side bar and the header work. This is the controller:
class Products extends CI_Controller{
public function index(){
//Get All Products
$data['products']= $this->Product_model->get_products();
//Load View
$data['main_content'] = 'products';
$this->load->view('layouts/main',$data);
}
public function details($id){
//Get products details
$data['product']= $this->Product_model->get_product_details($id);
//Load View
$data['main_content'] = 'details';
$this->load->view('layouts/main',$data);
}
}
And this is the view:
<?php $this->load->view('layouts/includes/header');?>

<?php $this->load->view($main_content);?>
<?php $this->load->view('layouts/includes/footer');?>