My game doesn't work

Hello, so i started playing HOI4 a while back and have around 480 hours in the game, but for some time now my game doesn't work, I can load into the main menu and start a new game but after only a couple of minutes of playing the game freezes and crashes. This has been happening for some time now, I don't have any dlc's after no step back and i don't play any mods at all. I have not been able to play the game for months now. I tried reinstaling the game and deleting the cache. I don't know what else to try. Any help is apreciated, thanks in advance!