Homepage settings

Hello someone here? 😉
Well, I just discovered this theme. It seems interesting. But obviously too new to be finished. (I’m in a hurry to be able to have a good french translation.
Anyway, my question here is about the landing page on homepage. I add some areas in the homepage settings, but some of them (About Us, Contact) appear on the right side.
Above all: if I add a static page first, this one appears on the left…

Do I have to change the code in the editor? (I got theme-child of course).
Thank you.