trouble shooting

[eluser]subhashramesh[/eluser]
thanks for your reply.I am giving my model,controler,view functions.could you please fix coming error.
my model is
<?php
class AccessDatabase_model extends Model {
function AccessDatabase_model()
{
parent::Model();
}
function getData()
{
$query = $this->db->get('sample');
if ($query->num_rows() < 0)
{
show_error('Database is empty!');
}
else{
return $query->result();
}
}

}
?&gt;
my controler is
&lt;?php
class AccessDatabase extends Controller{
function AccessDatabase()
{
parent::Controller();
}

function index()
{
$this->load->model('AccessDatabase_model');

$data['result'] = $this->AccessDatabse_model->getData();
$data['page_title'] = "CI Hello World App!";
$this->load->view('AccessDatabase_view',$data);
}
}
?&gt;
my view is
&lt;html&gt;
&lt;head&gt;
&lt;title&gt;&lt;?=$page_title?&gt;&lt;/title&gt;
&lt;/head&gt;
&lt;body&gt;
&lt;?php foreach($result as $row):?&gt;
<h3>&lt;?=$row->a?&gt;</h3>
<p>&lt;?=$row->b?&gt;</p>
<p>&lt;?=$row->c?&gt;</p>
<br />
&lt;?php endforeach;?&gt;
&lt;/body&gt;
&lt;/html&gt;
i tried to use this url:https://localhost/CodeIgniter_1.7.1/index.php/AccessDatabase
I am getting error as

A PHP Error was encountered
Severity: Notice
Message: Undefined property: AccessDatabase::$Ok1
Filename: libraries/Loader.php
Line Number: 1038
Fatal error: Call to a member function _assign_libraries() on a non-object in C:\xampp\htdocs\CodeIgniter_1.7.1\system\libraries\Loader.php on line 1038