Thanks for playing the game!
If you had the prompt to finish the map and you pressed Space there should be a red X mark placed both on the map and in the world. You need to get to the X and dig up the treasure.
Ohh I didnt saw it... Wait, I'll replay it xd
I guess we should have made it a bit more obvious hehe :)
Happy to hear you enjoyed the game enough to give it another try!
