CriPakGUI not working with P4G's .cpk

[SlyCooperReloadCoded]

I'm trying to get all the files out of Persona 4 Golden's data.cpk file. My first instinct was to use CriPakGUI, but that detects 0 files inside. Amicitia doesn't open it either. How should I go about extracting this .cpk?

[Tupelov]

When i tried it for the first time I realized that I didn't download the unencrypted version when I used vitashell. When i did it again with the unecrypted it opened just fine.(To opoen unencrypted in vitashell just go over to the game folder press triangle then select open unecrypted)