Mobile layout full-width section malfunction

After migrating my website to a new domain and updating my plugins, when I browse this page on the mobile phone (Samsung galaxy note 20) the width gets all messed up and although it is set on full width, it becomes smaller than full-width.

here is a screenshot of what I am seeing on my phone:
https://www.4shared.com/s/fPjPbXfuvfa

How can I fix this?

The page I need help with: [log in to see the link]