New game + problems with the third run of the game after passing the "heart of Stone"

Decided the third time to start "New game +".First was the main plot of the game, and then there was "heart of Stone".Press "New game +" choose this save and says "In this save game failed".I have another suggestion why not start: since I have been "heart of Stone" after the main story, and not before.This is so cause or another? Please explain.

P.S. Sorry for bad translation from Russian. I don’t know English:no

New game + problems with the third run of the game after passing the "heart of Stone"