Disgaea 3: Absence of Justice [BLUS30181]

how exactly do I get the game running? I tried getting it to run but I just keep getting white screen?

https://rpcs3.net/quickstart

yea I know I did all these

just that I keep getting a error saying NisGraphics.spu.self is missing even though its with the game folder

Attach rpcs3.log, put it in a .zip first so the forum accepts it.

However try this first: Make sure the structure of the game files is such that the folder USRDIR is inside the folder PS3_GAME, and next to the folder PS3_GAME is the file PS3_DISC.SFB. Move things around if need be.