Scroll not runs ok

Hi,

Not runs ok the scroll on 404 page, I can’t drop until bottom. But the 404 error page built runs perfectly, so I think is an 404page plugin error or
incompatibility with my wordpress theme “BeTheme”
404 error url: https://www.set-and-forget.com/vhkvkgcv%C3%B1/
404 error page: https://www.set-and-forget.com/page-not-found-error-404/

Any suggestions to solve it?

Thanks a lot!
Jose Antonio