I have a site with polylang installed with 3 languages. LV as default, EN and RU. For the PLURAR(polylang does not support it) strings translation I want to use poedit locally and then copy the translated mo/po files to the child theme /language folder. I tried to translate two string, copied the created mo/po files to the server, but the at the sites frontend transaltion is not shown. I have read multiple manuals and everything should be working, but nothing really happens.
In my child themes /languages folder I even created two types of language code files lv.mo , lv.po and lv_LV.mo and lv_LV.po but nothing happens.
My child themes function.php has definition of language folder.
load_child_theme_textdomain ( 'greattheme', get_stylesheet_directory () . '/languages' );
What could be wrong with my setup?