Plugin can`t find Language folder

Hi,

We have installed seamless-donations plugin – https://www.my_domain//wp_ru/wp-content/plugins/seamless-donations/ with the languages files in the folder /wp_ru/wp-content/plugins/seamless-donations/languages/

The problem is – when we changed the URL of site to ru.my_domain/…. we lost the translations. It seems like the plugin can`t find the language folder.

I supposed it is founded here at dgx-donate.php:

function dgx_donate_plugins_loaded() {
load_plugin_textdomain( ‘dgx-donate’, false, dirname( plugin_basename( _FILE_ ) ) . ‘/languages/’ );
}
add_action( ‘plugins_loaded’, ‘dgx_donate_plugins_loaded’ );

But I have no idea how to fix it.
Please help
Thanks
Nathan

https://www.ads-software.com/plugins/seamless-donations/