User is signed-out of PlayStation Network or data on the HDD could be corrupted. Make sure you are signed in to PSN by selecting [Settings] > [PlayStation™Network/Account Management] > [Sign In]. If the error persists, restart the PS4 system. If this does not resolve the error, try the following steps: Start the system in Safe Mode, and select [Restore Default Settings] Delete the user and then re-create it. If the error persists after trying all previous steps, try to Initialise the system by going to [Settings] > [Initialisation] > [Quick].
