Style formattings disappeared overnight

Just published our site and a few days later, almost all fonts, paragraph formatting and contact form have lost their formatting and some seem to be back in default settings. The contact form (Site origin contact form) is not working as it should and looks awful. This happens in all browsers. Everything seems to be ok when I’m looking the site in control panel. We have the most recent version. I used Elementor to edit pages.

The page I need help with: [log in to see the link]