I just updated the game right now in order to address your problem.
Can you tell me if you are now able to download the game properly?
Giving the game is in 64 bits, I guess you meant that you have a 32 bits computer that cannot run 64 bits applications?
I could make a 32 bits build when I return from abroad if it is the case. (Didn't see the point of having one since 32 bits computers are quite an old tech at this point.)
Alternatively if you don't want to wait, you can also download a random 32 bits RMMV game, delete the content of the /www folder and replace it with the content of the /www folder of this game, this way you will have a 32 bits version of this game.