I am using promotions to discount upgrades as a fixed rate however tax isn't showing up at checkout for the current upgrade or the the next week (auto-renewing only setting).

I originally had the tax geo zone set as USA and when I applied that geo zone to the promotion I got a system error.

Then I changed the geo zone in both tax and promotion to Buyers Everywhere, but then no tax showing with upgrade.

I also tested to make sure the initial subscription is charging tax and it is.

What am I missing?

Thanks,
Linda

Yes, I am on version 1.2.2 of CBSubs and installed promotions from the same upgrade package.

As a matter of fact, I get a 500 error when even logging in if the settings are:
Promotions - Promotion Name - Groups - Geo Zone of Buyer = USA

Do I need to send you my login credentials?

Linda

Sorry to be a pest about this, but my client's site is live and I really need help resolving why a 500 error shows up (even to login) if USA is selected as Geo in Promotions Plugin...

I have attached the server log for 500 errors on Friday.

The original problem was what after installing the promotions plugin, it is processing the correct fixed discount for an upgrade, but excluding tax at check out. (Tax is adding when purchasing a new subscription.) I then changed the geo to USA and that is when the 500 error page popped up, but I don't see it referenced it the error log. This happened on 8/19.

I am running Joomla 1.5.23, CB 1.7, CBSubs 1.2.2 and the promotions plungin I installed on Friday came from the 1.2.2 package.

ADDITIONAL INFO SINCE ORIGINAL POST:
I just recreated the 500 error. I changed the group on the promotion to USA. The link that had the 500 error is www.harvestfarmbox.com/index.php?option=com_comprofiler&task=pluginclass&user=62&plugin=cbpaidsubscriptions

Here's the server error logged:
[Mon Aug 22 08:13:05 2011] [error] [client 99.122.63.234] File does not exist: <span>/</span>home<span>/</span>harvbox/public_html/500.shtml, referer: www.harvestfarmbox.com/Community.html

I then changed USA back to Buyers everwhere, refreshed the screen on the front end where the error page was showing and it worked again.

Thanks,
Linda