[Plugin: Profile Builder] New language translation How to

Hello,

I have translate to greek language with http://poeditor.com
Then i exported greek.mo file and uploaded to :
/httpdocs/wp-content/plugins/profile-builder/translation/greek.mo

my wp-config.php file has this :

define(‘WPLANG’, ‘greek’);

I have also do the same with my theme translation and works fine.

But this is my first attempt for plugin translation!

What am i missing?

Regards
Mario

http://wordpress.org/extend/plugins/profile-builder/