sidebar disappears manytimes

It is really weird to see. Many times my blogs sidebars will disappear and looks awkward and makes the visitor irritant. I don’t know what is the problem. I constantly upgrade the WP versions and I use auto blogging plugin. Just see these – https://pickatop.net/ and https://sweethomengarden.com/. The sidebar appears at the bottom. Sometimes they will be in their place. Is anybody else have this problem? Is somebody says what may be the reason and how to overcome it.

thanks in advance,

anand