russian-roulette | ... Go ahead and try your best with this CLI russian | Game Engine library

im making a web based game but the problem is that the the same happens every round the same balls die in the same order and same ending every time nothing changes i dont know what i the problem (basically no randomizing) the idea of the game(russian-roulette) : there is a 1 in 6 chance of dying when you hit the button and it goes every player starting from the left one to the end which is the bottom left ball and the if you hit the button your and the loaded value is the same as the shot value you die. you win by surviving
and please if you have a solution explain it because im a beginner at this and thank you