[Resolved] Menu translation

Background of the issue:
I have added a new language (English) to my website hidden link. I want to change the names of sections of the main menu but can't find them in WPML (strings & taxonomies). I use automatic translation.

Symptoms:
The portfolio category 'activités' is not translated. I can't find where to change section names like 'discover the morvan' to 'tourism'. The menu is not translated also in English in Appareance > menus.

Questions:
Where can I find the section names to change them in WPML?