This version of the game uses the version 0.10.2 of love2d you can download it here:
Link: https://archive.org/details/love-0.10.2
if this does not work you can try using the current love2d version Link: https://love2d.org/
you can start the game by going into the src folder and typing
love . in the CLI or by drag and dropping the srcfolder on the love2d application logo