Hi, I'm glad you liked the game. To clarify your complaints.
1. The wood is placed in the pile of wood, just above it appears a box with the graph of the wood, likewise for the stones, there is a box on a pile of stone that indicates how much stone, and so on for the rope that is on top of the platform, you cannot put wood where they ask you for stone, once you collect the elements that they ask for, an icon appears that tells you to get on the triceratops, and you can handle it, thus being able to transport yourself and continue with the mission of the game (rescue to the lady)
2. if there are some errors that I missed to correct but they do not affect the gameplay.
and finally I invite you to try driving the triceratops, it's the best part, with it you can complete the game ;)