[Encrypted Game Files] + [work.bin (Decryption Key)] ➔ [Vita3K Emulator] ➔ [Playable Game]
You must overwrite the original encrypted work.bin in that folder with your "fake" license version. Troubleshooting vita3k workbin file
Did you from a physical Vita, or are you working with a backup file? [Encrypted Game Files] + [work