cheat not working

[giggle]

I don't know who to ask anymore so I'm posting here...
The cheat for HM:Hero of Leaf Valley won't work. Tried every cheat and nothing works.
The cheat.db works fine for other games, so I tried downloading several kind of ISO and CHD files of this game. Still nothing.
I only want unlimited stamina so that I can play freely
(I'm using newest ppsspp on macOS 12)
Sorry if I'm not supposed to post this here.