In the mobile version of the site, an indent appears on the right. How to find and remove?

Question

Layout

Hello!
And again a problem. rpsu.zzz.com.ua - layout on hosting. In the mobile version, an indent appears on the right and, accordingly, horizontal scrolling. Checked and did not find any emerging elements.
I ask you not to pay attention to the crookedness of the layout, but I ask you to help me find a jamb that interferes with beauty.
turbidity with overflow please leave for an emergency.
Thank you!

Answer 1

You have registered for the .container class , but .row are nested inside .container, which have

margin-right: -15px;
margin-left: -15px;

They then add this band to the right.