Pro Sites signup/upgrade page is blank

My expectation of Pro Sites might be inaccurate so let me know what I need to do.

I have re-branded pro sites to "pro" so I was expecting new or existing users who visit copier.equipment/pro to see the upgrade pricing table and be able to chose the plan they want. But the page copier.equipment/pro has no content other than logo and menu. I have tried accessing this page as an unregistered viewer and as a registered user with the same result. While signed in I have seen and clicked the "Upgrade Options" button but it takes me to this same page with no content. I have tested this in many different browsers and still get the same result with no content.
What should I do?
Thanks for your help.