Oh, it's about a bug for Russian players, not Russian translation. The bug is for Russian players who have played the translated version and want to play Day 3 but in English. They encountered a bug that made the main menu options disappear and it was only for those who played the translated version of the game.
Day 3 Russian translation is currently being worked on by the team that did the last translation! I can't say when it will be done, though.