How to get rid of horizontal scrolling in the mobile version of the site?

Question

css

Good health!
I have a question about the mobile version of the site. The patient is available via the link .
I can't get rid of the small horizontal scroll, it's only visible in the mobile version.
Visually, no elements protrude outward on the site, but there is a scroll!
Tried this method, didn't help:

html, body {
    overflow-x: hidden;
}

Disabling plugins also did nothing. Probably somewhere in the CSS of the theme itself. Theme for WordPress using Bootstrap.
Please help me identify the problematic piece of code. Three days of my picking led to nothing.

Answer 1

here is the problem area