Prb to translate theme in french using .pot file

Hello there !!

I tried for many times to translate the maskitto light theme in french, but without any success…

I used .pot file, but it doesn’t work :(. I still have the word “load more” on my home page, and “all” in the navigation.
May i did something wrong ?

My web site url : https://www.pascale-boudeville.fr/
theme version : 3.2.1
wordpress version : 4.4.2

Files :
/languages/fr_FR.po
/languages/fr_FR.mo

I followed all the steps (using poedit) to translate the words correctly, and put the files on the languages theme on my server (next to the maskitto-light.pot file). But i still have the “load more” word on my home page, even after cleaning my browser cache.

Does someone can help me please ?

Thank you muuuuuuuuch ^^