Shopping cart wraps out of sidebar to under content

Would someone be so kind as to tell me why—all of a sudden—after working on the code in a different page, my Easy Digital Downloads shopping cart widget in the sidebar wraps out of the sidebar to under the content on my home page.

It only does this on the home page, and it hasn’t been there before, and the home page has not been edited before I had the problem. It’s fine in the sidebar on all other pages. I can’t figure out why it’s wrapping out of the sidebar to under the content on the home page.

I have a maintenance page up, as I’m working on the site. It’s not live to the public.

Any help here is greatly appreciated.