Hi Kevin-
Thanks for reaching out! I’m sorry to hear about the problem with your menu not being clickable. I updated the title to your post to say “clickable,” because the word “responsive” generally means “not mobile-friendly” in web design terms.
It looks like what’s going on here is that the top row of your homepage has a large negative margin, which effectively puts it “on top” of your menu, preventing your users from clicking it.
In order to fix that, edit your homepage, and look for the yellow Edit Row icon (because of the negative margin, it will show up a little ways above your page content. Click on Advanced Control, and then Margin.
Here, you’ll see that the top margin is set to -89 Pixels. Change that to 0, and your menu will work properly: