problem with hosting

[eluser]digos[/eluser]
dear all,
i have problem where i upload my application to web hosting,
here the message :


Warning: require_once() [function.require-once]: Unable to access /home/jmn3489/public_html/system/codeigniter/CodeIgniter.php in /home/jmn3489/public_html/index.php on line 115

Warning: require_once(/home/jmn3489/public_html/system/codeigniter/CodeIgniter.php) [function.require-once]: failed to open stream: Permission denied in /home/jmn3489/public_html/index.php on line 115

Fatal error: require_once() [function.require]: Failed opening required '/home/jmn3489/public_html/system/codeigniter/CodeIgniter.php' (include_path='.:/usr/lib/php:/usr/local/lib/php') in /home/jmn3489/public_html/index.php on line 115


what i have to do for this problem?
thx..