Encounter an error while trying to play game on rpcs3.

I don't have a ps3, if I had ps3 then why should I use rpcs3? Now please tell me method in which game's iso is used. Because I tried this method but this name folders were not in the game iso.
So please give me any other method. And thanks for your help.

To make developing games, debugging and modding them easier. RPCS3 is not developed for enabling piracy, but rather preservation of the games. Please also keep in mind that we don't tolerate piracy, and piracy may result in permanent suspension.