Please help. I am live but now see the Callback function not working. WorldPay completes the transaction and returns the user to a blank template of my store with no info. The url is shown as

https://select.worldpay.com/wcc/card

Also the order does not get updated into Zen Cart.

I have double-check and triple-checked my installation and have clearly missed something. Other data points to know:

- Payment reponse URL set to http://<wpdisplay item="MC_callback"> with the enable response box ticked.
- enable Shopper response is ticked
- ZenCart shows the module set to live


What have I done wrong?