The admins needs to be able to change the default of their communities globally.
for now all the communities are launching in Russian language till changed by the logged in users.
You can change the global settings in the file: general.php
// Локализация по умолчанию (+ какие языки есть в системе)
// Default localization (+ languages represented)
'lang' => 'ru',
'languages' => ['ru', 'ua', 'en', 'ro', 'fr', 'ar', 'zh_TW', 'zh_CN', 'de'],Настроить глобально локализацию сайта можно в файле general.php.
No you can set the global language it's in the script I will check where and show you