Find the first container at the given coordinates.
There, you will find out how to get to step 2, which is a puzzle box.
You will obtain an item from it and for step 3 (same location as step 2) you will find a black box where you’ll have to use the obtained item. Please be gentle with the black box, it does not require force to open the drawer.
Instructions to reset the cache:
1.Take the key out
2.Close the drawer
3.Remove the red piece to take the ball out, put the red piece back
4.Use the key to unlock the puzzle box and place the ball inside, lock it back
5.Put the puzzle box where you found it
6.Place the key in the hole above the drawer
Please follow the steps in this particular order, otherwise the reset won't work and the next person to find it will have a poor experience. If, somehow, you don't manage to reset it properly, please let me know so i can fix it.