Only sometimes? That's weird...
Which link did you download it from? Try again a proper installation from another link, and put it in a totally separate folder. Also check that you have installed everything in the "Installation" section of the OP. After that if it doesn't work, please provide some screenshots.
Russian version is still being developed but has completely different visuals, musics and gameplay. I'd recommend trying both versions, then you can give us feedback on what you prefer from each version
The Russian version can be found on the game's wiki, which leads to its torrent link on pornolab.