[Urgent] Remove Sidebar from Home Page

Hi there, I was just editing my website’s Home page when I tried to remove the Meta Slider that appears on top of the page and then placing a Meta Slider instead on a new row on top of the Page Builder. When I did not like how it look, I reverted the changes, but when I viewed my website afterwards, a side-bar appeared next to the circle widgets.

That sidebar was not there before. I tried loading up an older version of the page, but it was still there. I even tried hiding the sidebar via css in my child theme, but it still occupies the space (and makes the sidebar disappear in the rest of the site). Any input in finding out what made the sidebar appear and how to remove it would be greatly appreciated.