WPML Language switcher leads to wrong page

Hey,

I’ve installed WPML and at first it worked fine, but now all of a sudden, the language switcher leads to the wrong home page (did this start happening right after an Enfold update?). My main language is french and I have the website in english also. On http://www.imarklab.com (in french) the Language switch leads to a random blog page instead of leading to http://www.imarklab.com/en/ like it did before. I have asked WPML about the issue, but they say it might be a theme error. Any ideas?

Thanks