How to change language ?

Hello,
Plugin works correctly but Facebook is in english (instead of french) :
Example : La vie de l’AUTO added 8 new photos.
Magazine · 8,015 Likes
· October 12 at 6:14pm · Edited ·
On my Facebook page, all is writtent in French.

Is there a tip to change language ?

Thank you

https://wordpress.org/plugins/facebook-posts-embedded/