Everytime i try to load a saved game windows shut the game down and shows a messege saying "outlaws stopped working", then it shows that green bar saying that it is looking for a fix, find nothing, shuts the game down and that's it... It wasn't happening until yesterday and at first it happened when i tryed to load the first save slot, the second was still working, then it started on the second too. I don't know what it might be since i did not change any configuration nor installed anything since yesterday.

Edit: it happens in the fort mission

Right, so I was getting the same issue in the historical mission called Civil War. You have to go to the second part of the mission (it loads in a new area past all the trenches etc.), then make your way inside the first house you come across. Upstairs, there's a room with a guy behind some crates and a big "hunk" of dynamite in the crate. There's also more dynamite in the room.

If you take the first save file here and either pick up or explode the sticks of dynamite directly in front of you (one of them looks misaligned? Maybe that one needs to be fixed?), the next time you save it, it creates a corrupt save file that crashes (with no special info given by Windows).

Works: https://drive.google.com/file/d/1vCV1NSrIdjFSKju_o_Gs9O17osp5C3qE/view?usp=sharing
Crashes: https://drive.google.com/file/d/1WtKWhhF3xbIdVdGMGtrUOrbWWmgzzG4U/view?usp=sharing

OP: Where in the fort mission were you when you saved? You should see if you can identify what exactly is causing it because it's a lot more likely anyone will fix it. Also, could you confirm this also happens with you so it's not system-specific.

EDIT: TEMPORARY SOLUTION

Just use the olairhead cheat (type it as you're playing) to activate flight mode. This lets you get through the gap between the crate in question and the wall so you don't touch the broken dynamite.