Problem after update

Hello everyone—yesterday, I updated my travel site on my Mac:
Software: 7 (41110) - License: 5.x

Since the update, the site’s display is completely messed up, whereas everything was fine before.
Is it possible to roll back and upload the previous version?
Does anyone have a solution to fix this problem?
My site, https://passionvoyages.fr/, is split into several sub-sites because the update process took too long due to the huge number of files and photos I have.
Yesterday, I updated the section covering Germany: MenuAllemagne

Note that the pages display correctly within Sitely itself. However, when I launch a preview, the display is incorrect…

@ALDEWAMB, I’ve had a quick look and everything seems fine to me. Maybe a screenshot in what you see in Sitely and a screenshot what you’ve uploaded pointing out the issues?..

Thank U for your help

The issue only affects the Germany section, as I didn’t update the sections for the other countries yesterday. As I mentioned, I’m juggling multiple sites because a single site was too unwieldy… In any case, it’s the only solution I could find.

Do you have your 1200 breakpoint “auto scaled”?

Sorry. I don’t know. I’m not at home during one week and without my mac. I’ll answer U next sunday