space between sidebar and content

Can you post a link to your site?

You can add this css:

@media (min-width: 992px) {
.main.col-lg-9 {
    padding-right: 40px;
}
}

Kadence Themes

Thank you Kadence themes, works beautifully.

The site is freeocean.ru but it is password protected as we are developing.