I have the psvimgtools whitelist patch working, but it doesn't seem to affect PSP games, or at least the one I tried (Castlevania: The Dracula X Chronicles.) I tested Hyperdimension Neptunia Re;Birth 1 and that runs fine, so I'm pretty sure the whitelist hack for app.db is fine.
whitelist for psp game? but psp game does not need withelist... all work without withelist
you try antiblacklist tool? see more here - http://wololo.net/2016/08/12/release-an ... -homebrew/
well, if dont work try to run with adrenaline! no?
if you don't have psp game base use e-psp bubble installer 3.1 and use adrenaline easyinstaller 1.10 to install adrenaline
or simply, if is possible re-download the game