Overflow Issue even after setting overflow:hidden ..one section has horizontal scroll

Hello Der

I am building this website for a client and he needs a horizontal scroll… because of it there is always an overflow for the desktop version I have set Overflow:hidden on all sections except the hozizontal Scroll… the white space is occuring only on desktop size between 1440 to 1280 … how can i solve it ???

Please help this the link to the website : Webflow - polycycl_Proj1

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