PPV not working on home page

When I use PPV to protect content on the home page, I receive an html 404 error after selecting the CONFIRM button. Coming back from CONFIRM brings me to http://homepage.com/26 .

If, at that point, I go back to the home page, my protected content is displayed.

I tried this in both the sandbox and live with consistent results.

I've already sent my credentials for this Wordpress account.

Thank you,
Lisa