Where is the .po file language

I’m searching for the languages folder inside the plugin but there is none.

I’ don’t understand how the translation work in ?

I placed a seatreg-fr_FR.po inside the /languages/plugins/ folder but nothing work.

I have created a folder name’s “languages” inside the plugin with my .po file and change the line 107 in seatreg_functions.php:

function getSiteLanguage() {

? ? return explode(‘-‘, get_bloginfo(“languages”))[0];

}

by a “load_plugin_textdomain” but that’s don’t work.

So, how to do that ?

Thanks for reply.