Navigation bar randomly changes layout

Hey everyone, I’m in a bit of a situation here. I’ve purchased this template and the template developper isn’t answering my emails.

This issue was there before I even tried making any changes to the template.

Wether in the designer, preview, or test live site, the navigation bar’s layout is completely off and randomly changes. It should be full width, as any standard nav bar, but it collapses to the right.

Here is the live test site:

Here is my site Read-Only: Webflow - Sliced Bread Social

Would appreciate any kind of support on this one,