Not working scroll page, what to do?

Hi all, recently on your website I noticed a feature that on the main pages of the site stopped working scroll page with mouse wheel (you have to pull down the scroll bar itself manually). Scrolling doesn't work on all pages, and I suspect that only those who have AdSense ads (as other pages with no advertising - scroll good). Perhaps somewhere in the css banned the scrolling (although already checked and everything is fine). In General, maybe something will help to find the cause, I would be very grateful. Thank you

The site itself:
June 14th 19 at 18:22
2 answers
June 14th 19 at 18:24
I have everything works fine
June 14th 19 at 18:26
Sit through G. Hrome

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