Problem: Translations stuck in In Progress or Updating
Solution: It looks like a conflict in the current translation job and works as expected after the following steps. This is the correct workflow for translation. Refer to this article for more details https://wpml.org/documentation/translating-your-contents/
1) Visit WPML>>Translation Management Dashboard
2) Choose the *Contactez-nous* page
3) Send it to Translation Basket
4) Visit WPML>>Translation Management>>Translation Basket
5) Send it for translation with the *Frist available* option of Translators
6) Visit WPML>>Translations queue and translate the page by clicking the *Translate* button
