For some reason my customizer won’t work at all. I’m trying to change the color of the Nav Menu but whenever i click on the header settings, nothing happens (see loom video). The customizer will open but if i try to click on Header Builder or Menu (or anything) nothing actually opens like it usually does. There’s no new plugins and everything is up to date. Everything has been working for months and nothing has really changed, not sure why it wont work.

I’ve cleared the google cache, shut down my computer, double checked that the wordpress URL and the Site address are identical, and there’s no invalid menu items.

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