Avada theme not working well after updating WordPress

So i’ve updated wordpress this morning and my theme doesnt work correcly. Anything i change in theme options doesnt appear on the site. Also my encodage is now probably set to ANSI cauz é è ê à â arent shown correcly. There’s things that has changed without my permision and that, only since i updated wordpress (there’s no update from Avada yet). Take a look on my website: http://pcqyvesethier.com/fr

Thanks for help i dont want to reinstall my theme again.

It’s better for you to contact the author directly or via their support system due to this is a forum for the general issues, not for the theme support.

From what version are you make upgrade?