I can only advise to retry several times until the fatal error is fixed, because wow, this is not a game jam project!
It's really well polished (models, sound, cinematics for the story, dub, effects like the snow in the beginning... and even a parameters menu!) You put a lot into this, ^^ and you deserve more review!
Maybe, if really a critic is needed, the puzzles are a bit obvious and could have been explored in greater depth, but i liked the mechanic and it served the purpose of the game, and the theme.
Well congrats!
(ps: Francais?)