My navbar is getting crazy in public!

Help! I did my website for my freelancing design studio, My website was working perfectly…

then I add some pages and suddenly the navigation bar is changing the layout in the different pages, for example I am in Home works perfectly but I go about us page gets crazy

It was made with a symbol, I don’t find a solution

please see my link:

https://preview.webflow.com/preview/tukuna?utm_medium=preview_link&utm_source=designer&utm_content=tukuna&preview=e9e182c76d1d679d0b75927b2380b505&workflow=preview