Menu playing up on this page only

I’ve designed a website for a client and everything was working fine, published it a little while ago and now we’ve just noticed that the menu on this page only isn’t working properly.
Once on the page, you’re able to click menu items that are disabled (as there’s nothing on them- just for navigation titles only) and when on a mobile you can’t use the menu at all. It shows up fine, but nothing happens when you click on it.
It’s set up like the other pages except that it’s a blog page.
Any ideas/help?
Thanks!

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