Installation Error Please Help

Hi,

i m new to Open cart and i have install on http://www.checkmobiles.co.uk but its gives error

Fatal error: Class 'Loader' not found in /home/checkmob/public_html/index.php on line 25


Installation was successful.

Please help me i shall be very thank full of u.

cheers

Upload OpenCart to your server again.

It may be that the required files failed to upload.