COD MW 2019 keeps closing automatically

I recently downloaded modern warfare 2019 , the game is great , runs cleanly with any graphics preset and all , but the only problem is that the game automatically closes or crashes without any type of error indication or anything , it crashes after a set point of time not a fixed place , keeps crashing at time i do not know please help , before i replace 2 files from crack folder to the main one but at that time the game itself wouldnt launch