Homepage z-index issues for responsiveness

Design help General
1

Thanks for viewing,

I have issues trying to get this website to be viewable on mobile devices.
https://sirckle-13aec3.webflow.io/

This is what appears, instead-- just a white page:

non-responsive-%20my%20clone
non-responsive-%20my%20clone1917×1035 290 KB

The original clone looks fine, on mobile devices:
https://design-direction-002.webflow.io/

responsive%20original%20clone
responsive%20original%20clone1917×1035 358 KB

I cloned the original project from this link:
https://webflow.com/website/Design-direction-002

I suspect it is a z-index issue, but I cannot find it. New to Webflow.
Thank you for any assistance!

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

2

Remove menu-child background-color.

CloudApp

3

Yes, this worked. Thank you so much for taking the time!