Hamburger menu show/hide

I am having some issues with my navigation menu in the designer. I would like to open the menu so I can design the menu. I’ve selected the navigation bar element and then gone into navbar settings on the right > toggled show. unfortunately, the menu doesn’t show. is there something I may be doing wrong here? Would be grateful for any advice. Here’s the link below:

https://preview.webflow.com/preview/boldynamic-site?utm_medium=preview_link&utm_source=designer&utm_content=boldynamic-site&preview=9ddd7bfc8d6435b319d409194f5c4a8c&workflow=preview


Here is my site Read-Only: LINK
(how to share your site Read-Only link)