I am using zen cart version [url removed, login to view] version with seo url module and php 4.4 version. I have installed the worldpay module from zen cart module download.
After making the payment when worldpay redirects to my site I get this message:
Warning: Cannot modify header information - headers already sent by (output started at includes/templates/template_default/common/[url removed, login to view]) in /includes/functions/[url removed, login to view] on line 44.
Due to this I am not getting orders in my website admin panel although I receive an email from worldpay that transaction successfull.
The cause as per zen cart tutorial and forum seems to be a blank space or line which is causing [url removed, login to view] I am no expert in php I could not find what the problem is. I think it would be an easy job for an php expert to find what the problem is. I want the customer to be redirected to my website from worldpay with order details in my website admin panel and customer account (This is what the zen cart worldpay module module normally does)