I can't get thru the path of balance i got everything 393 need 394 the key can't find it
pixel_player864712857
That is a Jade key. You don’t find it, you make it in your foundry. Check your filter settings in there if you don’t see it.
All info is here
https://diggysadventure.fandom.com/wiki/Story_Mines_-_China#General (Scroll a bit down. All info on how to make the keys and where to find the jadeite for it)