Question with FAGDec

So I'm curious on dumping a few of my carts that I have because I don't know if the games in question will be on Steam or just off the Vita(Like Demon Gaze 2, also because I'm just been trying to archive my stuff). Following the guide for Vita3K on dumping the cart I am stuck at installing the FAGDec package. I get the 0xFFFFFFFF error and assumed it was a bad transfer over FTP. So I downloaded the pgk from the github again and tried to transfer it over. Same error as before, so I'm not sure if there is something I'm missing.

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For extra info my Vita is modded on firmware 3.65 and everything is running on a Vita2SD card using the YAMT Installer.