Swapping colums in two column layout?

Which theme are you using? Does that theme allow switching content and sidebar? Are you willing to try a different theme if the sidebar can’t be switched?

sometimes it is enough to edit the CSS file to change the layout;

however, that is not a WordPress specific problem.

the guys where your theme comes from, also have one with a right sidebar https://freelancewp.com/wordpress-theme/blank-two-column-right-sidebar/ – so they might be able to help.

this forum here only suppports the themes from https://www.ads-software.com/themes/.

It would appear we have a blank two column basic left sidebar theme.