Checkout Process Error

[thehighlandsgroup]

I made some modifications today in ZenCart mainly editing stylesheet for Store Pages.

The Zen-Cart store is at http://www.drbanjo.com/drbshop/index.php

When going through checkout process after filling in credit card information go to confirm payment page and clicking submit we get the following error:

Fatal error: Call to a member function on a non-object in /var/www/vhosts/drbanjo.com/httpdocs/drbshop/includes/modules/pages/checkout_process/header_php.php on line 17

Coding from that line:
// load the after_process function from the payment modules
$payment_modules->after_process();

Here's server and version info:
TITLE_SERVER_HOST plesk1.w3foundry.net (66.193.10.238) TITLE_DATABASE_HOST localhost (127.0.0.1)
TITLE_SERVER_OS Linux 2.4.21-50.ELsmp TITLE_DATABASE MySQL 4.1.21
TITLE_SERVER_DATE 07/25/2007 21:54:28 TITLE_DATABASE_DATE 07/25/2007 21:54:28
TITLE_SERVER_UP_TIME 21:54:28 up 8 days, 23:08, 2 users, load average: 0.02, 0.12, 0.15
TITLE_PHP_VERSION 4.3.2 (TITLE_ZEND_VERSION 1.3.0)
TITLE_HTTP_SERVER Apache

and yes we're running Curl. I've done search on all files that contain "after_process and they weren't edited. They all point to payment modules. Maybe I should delete and reinstall Authorize.net AIM module?


I would appreciate any pointers or direction to go at this point as we've exhausted reviewing of Zen-Cart Knowledge Database and Forum postings.


Thanks,

Gene Fourney
The Highlands Group

[Kim]

What payment module were you using when this occurred?

[thehighlandsgroup]

Authorize.net AIM Module

It was working yesterday. However we were using Authorize.net SIM module about 3 weeks or so ago and quit working for no apparent reason. Authorize.net was saying issue was at credit card merchant processor and vice-versa. I deleted SIM module and installed new AIM module and its been working until today.

Gene Fourney
The Highlands Group