Error Setelah Upload CI ke cpanel

An uncaught Exception was encountered

Type: RuntimeException

Message: Unable to locate the model you have specified: Model_barang

Filename: /home/maduibun/public_html/system/core/Loader.php

Line Number: 349

<?php
defined('BASEPATH') OR exit('No direct script access allowed');

class Auth extends CI_Controller
{
	public function __construct(){
		parent::__construct();
		$this->load->model('m_login');
		$this->load->library('session');
	}