Tutor LMS Window mis-scaled

I have just started building my first course. When I went to demo the course the course lesson page was wildly mis-scaled and on the far left side of my page. I have had issues like this with the course overview page and I was able to fix it by updating the page theme setting from “use default layout” to “use page builder layout”. I cannot access this setting for my course’s lesson page and therefore don’t know what to do next. Any help would be greatly appreciated.

The page I need help with: [log in to see the link]