You need the Ren'Py plugin ver. 8.3.7 to run it, which is the one that was used to make the game. You can use the same ver. of joiplay that you already have: )
And everytime you try to run a game and fails, check the logs to see what version of Ren'Py they used so you can install the same
Oh my goodness. I didn't expect this, but I can finally play the game. Thank you!