Removing/Updating Mobile Menu

Hi! On the mobile version there is something that says “Menu” (and has three lines next to it) above the centered social icons. The menu is blank. I can’t figure out how to either delete that menu or add my links to it.

I tried deleting the mobile menu entirely and creating a new one with the links I want under “Customize” (where I do all the other menu stuff), but that didn’t work. I can’t figure out why it’s blank.

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