what on earth 😠sorry you ran into those! never ran into either in my testing and i don’t know any way of easily getting logs from web games, so it might be a mystery forever :(
as for saving progress, 100% agree it’s something i would’ve loved to add but sadly web games are still quite new to me so i wasn’t sure the best way of handling it within the jam timeframe :(
thank you for playing though! :P