itch.io

Why isn't there an option to date the button?

Hey so for some reason the game isn't downloadable through the itch.io app which is fine, I went to the itch.io website to download it straight from the download page and it worked. However, I unzipped the file and tried to click on the file called Liar Liar which looks like a little girl with red hair (I am on a mac). I have already unlocked permissions on the file, but whenever i try to press on it my tab bar down the bottom glitches for a minute but nothing pops up. Does anyone know what's going on? I reALLYY wanna play the game and not have to watch a walkthrough ;~;