edit user profile

i contact "login module" .
he said :

I have printed out the language object and all files are well loaded, but JText::_() doesn't work from some reasons..
[com_users] => Array
(
[/home/mysite.com/www/language/ru-RU/ru-RU.com_users.ini] => 1
)
[mod_login] => Array
(
[/home/mysite.com/www/language/ru-RU/ru-RU.mod_login.ini] => 1
)
[plg_user_profile] => Array
(
[/home/mysite.com/www/administrator/language/ru-RU/ru-RU.plg_user_profile.ini] => 1
)