Plutonium

Well none worked so i reinstalled the game and it still crashes, sometimes it shows "could not authenticate with plutonium" or smth like that i dont remember

So im just playing the game and then it randomly freezes for some seconds and the game closes. I have no idea how to fix it, it also crashes if i alt+tab and most times it crashes a few seconds after startups, if it doesnt crash when i open the game then it crashes a few minutes later, so far the furthest round i was able to get to without the game crashing is 2. Please help