Categories, listings, advanced search don't work. What am I doing wrong?

Hello,

As you can see here – https://gyazo.com/a7920775d5885693a4e71bb8636db06b , all of my additional pages such as “ALL LISTINGS” “ALL CATEGORIES” “ALL LOCATIONS” “ADVANCED SEARCH” all show their HTML coding, but do not in fact show what the page is intended for.

I do believe I may be missing something but couldn’t find it in the tutorial videos, please help!