Thankyou for playing the game. Since the resource files of the browser version are hosted in the itch.io sever the save functions will not work eventually. But in the near future i will update the downloadable version to have a save function, lengthen the storyline, and also fix some detail mistakes that i made in this version.
For the shop that is not responding, maybe because you use a mobile browser i guess. I also try once in the mobile browser and the shop event is not responding unless we click the player sprite in front of the shop character.
Thankyou for the feedback.