LINE doesn't work in Russia. Solved!
LINE, Facebook, Messenger, WeChat and even YouTube has been blocked in Russia. But use it in Russia still absolutely legal if you know how.
How to use LINE in Russia.
For PC: install web-browser extension RuDostup from Chrome Store
For Android: install RoDostup.apk. How to install it watch in this video
So, after the app installed all services mentioned above will works.