Page loads at bottom of page

On ONE page, a very important one, when it loads, it loads with the footer showing instead of the top of the page. Since it is my main membership signup description area, it’s kind of important that it load properly. I’m dealing with a bunch of non-computer users, and getting messages that “annual membership doesn’t exist” because they apparently don’t know how to scroll UP.

Sarcasm about user error aside, it is confusing. Any ideas why the page would load bottoms up? (firefox, latest installs of everything)

https://divawow.org/membersonly/membership-signup/