Check the Disc:

Ensure that the game disc is not scratched, dirty, or damaged. Clean the disc gently with a soft, clean cloth if needed.
Test with a different game disc to determine if the issue is specific to one disc or multiple discs.
Restart Your PS4:

Sometimes, a simple restart can resolve temporary issues. Turn off your PS4, wait a few seconds, and then turn it back on.
Update System Software and Game:

Ensure that your PS4's system software is up to date. Check for updates in "Settings" "System Software Update."
Make sure the game you're trying to play is also updated to its latest version.
Rebuild Database:

Boot your PS4 into Safe Mode:
Turn off the PS4.
Press and hold the power button until you hear a second beep (around 7 seconds).
Connect a controller using a USB cable and select "Rebuild Database."
This process might help resolve issues with corrupted data affecting disc reading.
Initialize PS4 (Last Resort):

If none of the above solutions work, you might consider initializing your PS4. Keep in mind that this will erase all data on the console, including games, settings, and saves.
Go to "Settings" "Initialization" "Initialize PS4" Full.
Make sure to back up your important game saves and data before proceeding.

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