honestly I think its 32 bit but im not sure, the game only has an install button, but it doesnt let me choose any specific downloads because its all automatic. is it possible that its a problem with the prerequisites?
Wait, so you downloaded the game and got the rar file right? You extracted it, and clicked on the application and it gave you this error? If so, then I don't know if there's much I can do unfortunately, as I gave you all the possible solutions that came to mind. Damn, I really hope you somehow figure this out man. :/