That’s the default save location. If your saves are in the rom folder you need to set a custom path to point there otherwise it will always try to save to the default. That’s new and the cause is that google doesn’t allow apps writing to the SD anymore
if your roms are in the SD and you’re using kitkat you might need this: https://play.google.com/store/apps/deta … dfix&hl=es


You can find it within the official PPSSPP distribution or in the repo if I’m not mistaken.
You need to place it in your SYSTEM directory, not assets. I’ve been meaning to change that error to reflect that but I never got around to do it.