Problem with ordering

[ondra-banov]

Hi,
I have a problem with the trade. I changed two files and order.php module.php. There was a problem and I accidentally deleted a backup order.php. When I try to order something, add to cart, select the shipper and the confirmation order, the only white page. Does anyone know how to fix it?
Module.php I restored from backup, but I dont have now order.php (original)

Prestashop 1.3.0.10

Thanks

[rocky]

Edit config/config.inc.php and temporarily change 'display_errors' from 'off' to 'on'. That should give you an error message instead of a blank page, which should help you identify the problem.