If this error occurs after launching a game, delete the game in which the error occurs from Settings > Storage, and reinstall the game.
Start your PS5 in Safe Mode and perform "5. Rebuild Database".
If the error occurs again, reset your PS5 from Settings > System > System Software > Reset PS5, and try installing the application again. (Please back up your data in advance.)
If these steps do not fix the problem, please contact us.