Cart Bombing Between Shipping Selection and Payment

This is kind of a big one, everything was going along beautifully and now:

I have orders that cannot be paid for, I can't even seem to push them out of the cart and into an invoice.

Help desperately needed and appreciated!:frusty:

Thanks,

Tom

https://xwhatwouldwaltdo.merchantquest.net/WWWDStore

When you reply - scroll up and read posting tips - then provide the information

What you are posting is like stating

"I have a problem - can you guess what it is"

•What version of Zen Cart are you using?
1.51
•Has your site been upgraded? When? From what version(s)?Yes, from 1.5, the script did it.
•If you've upgraded, HOW did you upgrade? (official upgrade procedure or an automated script from your hosting company?)Automated script from behind button in "Admin"
•What plugins/addons have you installed? When?
USPS Shipping Module Update - RateV4 - IntlRateV2 2/8/13 (Ran fine after this install)
zen_fb_catalogbrowse_current 2/16/13 (Did not see this page affected, so not checked)
Google Merchant Center Feeder 2/7/13 (Installed before USPS module, above)
cart_reminder 2/18/13 (Did not see this page affected, so not checked)
Syscheck 2/18/13 (Not checked)
recover_cart_sales.zip 2/21/13 (Installed after error reported, wanted to see how many carts were hanging out there)
Encrypted Master Password 2/21/13 (Installed after error reported, wanted to see what complaining guest was seeing)
•HOW did you install Zen Cart? (upload via FTP and run zc_install, or a one-click install from your hosting company? (one-click installs might mean you don't have enough information about your site/server to make customizations easily))Unzipped locally and ftp'd to server
•What version of PHP and MySQL is your server using? (See Admin->Tools->Server Info)PHP Version 5.2.17,MySQL 5.0.91
•WHEN did the problem "start"? How does that compare with other events of your hosting company, changes you've made to your site files/addons, or your admin settings, etc?Checked this specific page after installing USPS mod and it was beautiful. Did not know there was a problem until notified by customer. Nothing in servers PHP error logs.
•If this is your first store, have you tested all aspects of transactions before going live?Was on oSC for 10 years, this is my second Zen store. All aspects were functional at go live.
•In what ways is your site customized or different from a brand new uncustomized install? customized page templates
•If you're encountering display/layout problems, post your site URL* so it can be seen in action. ```html
xwhatwouldwaltdo.merchantquest.net/WWWDStore/

•If you're encountering problems that could be related to your server or hosting company, include the name of your hosting company (not their URL).Doubtful but hosted by FutureQuest.
•HAVE YOU LOOKED IN THE FAQ AREA for answers to your question? (ie: a search for your error message or what you want to edit/change, etc) No error message displayed, no entries in Server error log. ZC log is empty.
•Have you searched the FORUM for your error message or for answers to the question you're asking? Yes.

Cart goes off the rails at checkout_shipping transitions to next page, produces a blank, white page and pointer shows an endless loading cursor.

WWWD:

produces a blank, white page
Searching for "blank page" in the FAQs brings up this article: http://www.zen-cart.com/content.php?124-blank-page

Okay, I am finding files in the /cache directory, nothing worthwhile was found in /logs. I'm not seeing anything that looks like an error. Perhaps, I am not understanding what I am looking at.

Can someone help me, please?

BTW, I turned on the strict error reporting and on the white page, it reveals nothing.

Sounds like a coding error in something you've changed or added.
http://www.zen-cart.com/wiki/index.php/Troubleshoot_-_Diagnosing_Obscure_Issues

Also, you said:> •If this is your first store, have you tested all aspects of transactions before going live?Was on oSC for 10 years, this is my second Zen store. All aspects were functional at go live.So, that begs the question: If it was all perfectly functional but suddenly stopped working, what did you change?

I rebuilt it in only 22 hours BUT two of the modules are showing on the configuration list but their configuration pages have only column headers and no values to set. I went into the database and think that I found the problem but before I muck things up wanted to ask the question should:

configuration_group.configuration_group_id= admin_page.page_params?

I am seeing some isolated drifting and think that this may be the problem.