Sections borders - problem

[LUDVIK]

Dear all,

I wanna ask how to remove section borders as you can see in my PrtScrn. I don't see them f.e. in tutorials videos, but they are in my Elementor page builder and also in the web page I spent a lot of time figuring out why they are there and how to move them off

Any suggestions, please? Thank you!!!

P.S. I am using Shapely WordPress theme