The first error was a one time thing i just replayed and didn't got it so maybe it was just unlucky.
Game start well only thing that could be better is maybe have a counter for the number of action on the maps i get that it's 3 but it would make more clear to how much left i have. Only thing i couldn't do was finding the pickaxe and find how to get the stat to get the 2nd card. In the end it's a good demo with a fair ammount of content. Good luck for the next update.