Product Page not loading after upgrade

Hi, I just upgraded from 1.3.9d to 1.3.9g

Now, my product pages are not loading correctly. I have uploaded several times, but no luck.

Is there a setting somewhere that is not correct?

Here is an example of a product page:
http://bigbendbookstore.org/store/index.php?main_page=product_info&cPath=41&products_id=566

As you can see, it loads the product image and title, but nothing else. The last line of HTML is:

What am I missing here?

The next line would be the price itself:

Have you done anything unusual with the currency symbol ?

Check the error logs in /cache.

I don't think there are any changed files in version g that affect the product info page.

I didn't change anything but upload the changed files. I haven't touched the currency symbols. Where should I look for that?

I don't see an error log in /cache

ok, it looks like someone else installed a product price editor, or some price add-on. I think that might be causing the issue.

Ok, the Group Pricing add-on was the issue. Apparently, it is not compatible with 1.3.9g.