Scroll Problem with Fixed Menu

Design help General
#1

Hello,

i created a fixed custom mobile menu and have problem with scrolling.

To see the problem please open the site in 900x500px. The menu items confict and the overflow does not work.

I read all the related posts but the problem exists.

https://preview.webflow.com/preview/hypereleon?utm_source=hypereleon&preview=2c2f34625f0354a41dff75d7dd38438f&mode=preview

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