I have checked the file plugin.php file and it appears that the function is not working correctly:
$locale = get_locale ();
if ( empty($locale) )
$locale = ‘ru_RU’;
$mofile = dirname (__FILE__).”/locale/$locale.mo”;
load_textdomain ($this->plugin_name, $mofile);
According to the code the filesname of the *.mo file must be ru_RU but it still does not working. Unfortunately I am not good at php programming so I cannot edit the code. Contacted Simon about this issue but did not get the reply so far.
Andreu did you find the work around?
Thanks 😉