Usually indicates a sync issue. Ensure your PS3 is "Activated" with a dummy PSN account.
A tool (like PSNPatch or reactPSN) or a modern CFW/HEN environment "signs" the license using the RAP file. How to Install PKG and RAP Files pkg rap ps3
This means the RAP file is missing or wasn't placed in the exdata folder. Usually indicates a sync issue
Think of the and the RAP as the physical key . You can have the chest on your hard drive, but you can't see what's inside until you use the key to unlock the lock. Installation: You install the PKG first. Validation: The system looks for a license. pkg rap ps3