I don't know, what do you mean by "reinstall", because the game has no installation at all. There's just files and different location can't really help, though, but I tried to download the game again and it didn't helped. The problem seems to be in the save game files. I made a couple of new games and I played a little while. One of the most game breaking bug I found was in Charlene second (A) scene, when she want you to say it, that you like it and you save the game before answer. When then you try to load this save, the save game file ended up corrupted, something about some variable is null, sorry, don't know which one it was exactly. One of the most newest save I played has 27 days and again, after church step 8, it's impossible for me to load the game.
There's a pattern, I think. My oldest save has around 75 days and it worked fine, until I've done church scenes up to step 8 (I overlooked church for the most of the time, so the game run ok and start doing this scenes around day 61-65, I guess). In this newest save, I made church scenes almost right away and I can't load a game anymore even when I played only 27 days, so I would have suggested, that the problem could lies in the church scenes or some game mechanics involved in church scenes, maybe