Change Language of membership premium plugin

Hello Guys,

I have take a week to check and observe my problem.

I have config my wp-config.php as fr_FR

i have edit 2 word using poedit and save as fr_FR

i have question.

How is possible to get the mo files and also i have put the .po files and the languages still in english?

Thank you if you can help me with this small problem.

Jimmy V.