Hey! Thank you for playing. This is the first time someone has reported this bug, so if you're still stuck, could you go a bit more in depth and send me an email at enunhotel@gmail.com with the details so I can figure out how to patch it?
It seems to work now. Not sure what happened. :)
Im playing this on a DMG gameboy. I had the same problem but I talked to the guard and then said no problem and then it worked for some reason