Lỗi hàm file_get_contents

Thử up cái code tự động cập nhật tin tức vừa down dc nhưng khi up lên host chạy thì nó báo lỗi
Fatal error: Call to a member function start_transfer() on a non-object

dưới đây là code của file tudong.class.php. Ai biết sửa lỗi này không giúp mình với.

<?php

class AUTONEWS {
var $url;
var $indexpage;
var $segments;
var $content;

// init
function AUTONEWS ($url,$indexpage = "")
{
// fix for continue reading
$this->indexpage = $indexpage;
$find = array (" ","&");
$replace = array ("+","&");
$url = str_replace($find,$replace,$url);
$this->url = $url;
$this->converturl($this->url,$this->segments);
}

function modify_urls()
{
$tags = array
(
'a' => array('href'),
'img' => array('src', 'longdesc'),
'image' => array('src', 'longdesc'),
'frame' => array('src', 'longdesc'),
'iframe' => array('src', 'longdesc'),
'object' => array('usermap', 'codebase', 'classid', 'archive', 'data'),
'script' => array('src'),
'table' => array('background'),
'tr' => array('background'),
'th' => array('background'),
'td' => array('background'),
'embed' => array('src'),
);
preg_match_all("#<s*([a-zA-Z]+)([^>]+)>#", $this->content, $matches);

for ($i = 0, $count_i = count($matches[0]); $i < $count_i; $i++)
{
$tag = strtolower($matches[1][$i]);

if (!isset($tags[$tag]) || !preg_match_all("#([a-zA-Z-/]+)s*(?:=s*(?:"([^">]*)"?|'([^'>]*)'?|([^'"s]*)))?#", $matches[2][$i], $m, PREG_SET_ORDER))
{
continue;
}

$rebuild = false;
$extra_html = $temp = ';
$attrs = array();

for ($j = 0, $count_j = count($m); $j < $count_j; $attrs[strtolower($m[$j][1])] = (isset($m[$j][4]) ? $m[$j][4] : (isset($m[$j][3]) ? $m[$j][3] : (isset($m[$j][2]) ? $m[$j][2] : false))), $j++);

switch ($tag)
{
case 'object':
if (isset($attrs['usemap']))
{
$rebuild = true;
$attrs['usemap'] = $this->changeurl($attrs['usemap']);
}
if (isset($attrs['codebase']))
{
$rebuild = true;
$temp = $this->segments;
$this->converturl($this->changeurl(rtrim($attrs['codebase'], '/') . '/', false), $this->segments);
unset($attrs['codebase']);
}
if (isset($attrs['data']))
{
$rebuild = true;
$attrs['data'] = $this->changeurl($attrs['data']);
}
if (isset($attrs['classid']) && !preg_match('#^clsid:#i', $attrs['classid']))
{
$rebuild = true;
$attrs['classid'] = $this->changeurl($attrs['classid']);
}
if (isset($attrs['archive']))
{
$rebuild = true;
$attrs['archive'] = implode(' ', array_map(array(&$this, 'changeurl'), explode(' ', $attrs['archive'])));
}
if (!empty($temp))
{
$this->segments = $temp;
}
break;
case 'param':
if (isset($attrs['valuetype'], $attrs['value']) && strtolower($attrs['valuetype']) == 'ref' && preg_match('#^[w.+-]+://#', $attrs['value']))
{
$rebuild = true;
$attrs['value'] = $this->changeurl($attrs['value']);
}
break;
case 'a':
if (isset($attrs['href']))
{
$rebuild = true;
$attrs['href'] = $this->changeurl($attrs['href'],false);
}
break;
default:
foreach ($tags[$tag] as $attr)
{
if (isset($attrs[$attr]))
{
$rebuild = true;
$attrs[$attr] = $this->changeurl($attrs[$attr]);
}
}
break;
}

if ($rebuild)
{
$new_tag = "<$tag";
foreach ($attrs as $name => $value)
{
$delim = strpos($value, '"') && !strpos($value, "'") ? "'" : '"';
$new_tag .= ' ' . $name . ($value !== false ? '=' . $delim . $value . $delim : ');
}

$this->content = str_replace($matches[0][$i], $new_tag . '>' . $extra_html, $this->content);
}
}
}


function changeurl($url, $proxify = true) {
$url = trim($url);
$fragment = ($hash_pos = strpos($url, '#') !== false) ? '#' . substr($url, $hash_pos) : ';
if (!preg_match('#^[a-zA-Z]+://#', $url))
{
switch ($url{0})
{
case '/':
$url = $this->segments['scheme'] . '://' . $this->segments['host'] . ($this->segments['port'] != 80 ? ':' . $this->segments['port'] : ') . $url;
break;
case '?':
$url = $this->segments['base'] . '/' . $this->segments['file'] . $url;
break;
case '#':
$proxify = false;
break;
case 'm':
if (substr($url, 0, 7) == 'mailto:')
{
$proxify = false;
break;
}
default:
$url = $this->segments['base'] . '/' . $url;
}
}
if ($proxify) {
$valuereturn = $url;
} else {
if ($url{0} != '#') {$valuereturn = $this->indexpage . "&id=" . $this->encodeurl($url); }
}
return $valuereturn;
}

function encodeurl(& $url) {
$url = rawurlencode($url);
return $url;
}

function converturl($url, & $container)
{
$temp = @parse_url($url);

if (!empty($temp))
{
$temp['port'] = isset($temp['port']) ? $temp['port'] : 80;
$temp['path'] = isset($temp['path']) ? $temp['path'] : '/';
$temp['file'] = substr($temp['path'], strrpos($temp['path'], '/')+1);
$temp['dir'] = substr($temp['path'], 0, strrpos($temp['path'], '/'));
$temp['base'] = $temp['scheme'] . '://' . $temp['host'] . ($temp['port'] != 80 ? ':' . $temp['port'] : ') . $temp['dir'];
$temp['prev_dir'] = $temp['path'] != '/' ? substr($temp['base'], 0, strrpos($temp['base'], '/')+1) : $temp['base'] . '/';
$container = $temp;

return true;
}

return false;
}

function start_transfer()
{
$this->content = file_get_contents($this->url);
}

function updatecontent($content) {
$this->content = $content;
}

function getcontent (& $content) {
$content = $this->content;
}

// end of class
}
?>