Also show BDO patcher settings, cause right now you have top led black and thats not good, either you set wrong path to live folder in settings or your meta file is screwed in wich case you will need to recheck files (so game downloads files thats been corupted) and start game to see if it fixed and runs in russian. only when try again step by step.
Black can mean only 1 thing - it was not found (missing). I doubt that he deleted it, so most likely client auto-detection didn't work out (I added it long time ago with 1 volunteer who basically found only a single record for current user, not the machine, so I'm not surprised that it might not work if people have 2 Windows users or more, or they simply changed user-based storage).
@Aton - just set the path to game folder in BDO Patcher settings (...\BlackDesert\live) for the RU client.
@LithStud - I'll PM you instructions, if you'll have time and will be eager to help me with RU client auto-detection then you'll know what to do, at least it will reduce the amount of questions like that