trying to place another water purifier also crashes the game , so does trying to put things in a Chest.
It was a general problem.I've just redone that engine and seems fixed for all items.
not in the web version.
It is a weird bug, still checking why.I ve discovered that it fails if you set up any other item than the crop box first, or if you delete the first item, it works normally.
I'm sorry for the inconvenience.