[lorak]

Of course you get that message. Your game files are encrypted. The patch only works on a decrypted VITA_COMPRESSED_WAD.arc file. Every time you see the sce_pfs folder, it means encrypted files.

You are playing with a game card. That is the meaning of gro0. Just follow a tutorial on how to dump a game card. It is easy. Anyway, you can still select "Open decrypted" on folder gro0:app/PCSA00115 in VitaShell to apply the patch afterwards.

Follow the readme from 2023 Game patch. In this readme, I assume that you have the game on SD2Vita not in a game card. In the end is the same procedure, the only difference is from where you get the file, gro0:app/PCSA00115 instead of ux0:app/PCSA00115.

Hope that helps.