on any puzzlescript game it does that. and playing html on itch doesn't work. I remember getting past it one time but I don't remember how. I've even pressed every key on my keyboard and found 'M' is a the mute key, but nothing else got past it. I searched up the issue and it seems like its happening to one other person and they didn't get an answer, so thank you for replying
Okay if any html game doesn't work it's very likely that your browser is doing something unwanted. Try disabling extensions and/or changing settings to see if anything works. Another option is to try other browsers like Firefox, Chrome or even the itch.io app. I know at least these three work fine, most of the time.