The downloaded file was not installed to the system properly.It is likely that the data has been corrupted during the download process. Delete the downloaded file. On PS4, go to [Notifications] > [Downloads] and select the content. Then press the OPTIONS button on your controller and delete the downloaded content. Retry downloading the file. If you had the error with a game patch, highlight the game application on the home screen, press the OPTIONS button and select [Check for Update]. If you had the error with a game from PS Store, go to [Library] and select the application to download the file. If the error persists, try initialising your system by going to [Settings] > [Initialization] > [Initialize PS4] > [Quick]. Then try re-downloading the content. If the error persists and if you have previously upgraded HDD, switch to the original HDD and re-install the system software. After system re-installation or initialization, try re-downloading the content.