CC-Avenue Payment Gateway Response Page return 404 error?

[aveeva]

Here is my code :

https://paiza.io/projects/SUiG5qp_wt...w?language=php FYI -> [index.htm -> LineNo : 781 & 782]

After successfully received payment response page return 404 error

The form & CC-Avenue Payment Gateway Request page working good, after customer paid the response page return 404 error.

How can i solve the error?

[zmbd]

1) You need to list what steps you have taken to debug this code
2) You need to post the code within this forum, most of us cannot access coding depositories from where we typically answer these questions.
> When you post your code, be sure to format it using the [CODE/] formatting tool