I had NZP installed and working on my PSP go but accidentally messed up some of my files, after i reinstalled for some reason it wont let me open any maps. When I click to load one it keeps saying couldn't load progs.dat. I've tried replacing the files multiple times on my psp and it keeps saying it, I'm using the download from the github page so im sure its not the files im using. Like I dont understand what the problem could be it worked before, i deleted the file completely and reinstalled them completely multiple times now.
Nazi Zombies: Portable