If the error only occurs with one specific game (e.g., a digital download of Call of Duty or Fortnite ), the game data itself might be corrupt.

Use a custom DNS (like Al-Azif’s) to prevent the PS4 from connecting to Sony's update servers, which stops automatic game updates from breaking your FPKGs. Disable Auto-Updates: In the PS4 settings, go to System > Automatic Downloads and uncheck "Application Update Files." to access your console's trophy files?

This is the "magic fix" for many software-related PS4 issues. Rebuilding the database does not delete your games or saves; it essentially scans the hard drive and creates a new map of all the data. It fixes corrupted file structures and cleans up fragmented data.