Delete Button in Orders > Customers Broken

Running ZC version 1.3.8a fully patched

In Customers > Orders when I try to delete an order it takes me to the "Are you sure you want to delete this order?" dialog with 2 delete buttons. However, neither button works. The top one takes me back to the orders page and the bottom one doesn't do anything.

Mods Installed:

• Email archive manager
• Ultimate SEO URLS 2.106
• User Tracking 1.3.6.2
• Backup mySQL Admin 1.3
• Integrated COWOA 1.3.8
• Google Analytics 2.2.1 (Andrew)
• Quantity Discounts v1.10
• Create Simple Orders

I'm not sure when the button stopped working. I installed Create Simple Orders today and noticed it when I was testing the orders section functionality. The only file I overwrote was /public_html/store/admin/includes/classes/order.php. I restored an backup copy of this file when I noticed the problem, but the delete button was still non-functional, so I'm not sure what the cause is.

I search around on the ZC forum for awhile and couldn't find anything directly related. I saw some threads about not updating the html_output.php file correctly in the recent security update, so I confirmed that I had correctly updated the file, but the Delete button is still broken.

I'd very much appreciate any suggestions. I need to delete all my test orders :( If someone could even point me in the right direction in terms of files to look at I would be very grateful. At my wits end.

Thanks,
Nate

That button is handled by /admin/orders.php
Perhaps your version of that file has been damaged or incorrectly altered by an addon or customization.

The Create Simple Orders mod includes instructions for updating admin/orders.php. Something in the instructions must be mistaken, because when I restore a old copy of orders.php everything works fine. Looking into it further. Thanks DrByte!