You're simply out of memory. For a start, don't run Discord or Google Chrome while trying to run the game.

Even if I turn them off, there's still a possibility it starts too high. By example when I restart the game or play another game and return back to CS.

Not sure if it's a game issue or pc issue though.

Still sounds as though you're just out of memory. Reduce your memory use accordingly, by reducing your number of subscribed assets.

Oh man that sucks now I have to do extra work to get this game running again

@darknova324 It is very easy to subscribe assets ignoring the impact that this entails, the game itself brings an immense amount of assets adding a few Thousands goes against common sense. It's nice to find out what the PC limit is, but going through the full list of assets and removing anything irrelevant is even better.