Turn off your ps4 and then remove the power plug and put it back on.
Step 2
Now, what you want to do is turn in it back on but from the console instead of the controllers. once you hold the power button to turn in on keep holding it for about 7 seconds more and it would take you to Safety Mode.
Step 3
Connect the controller and then proceed to choose Rebuild Database by using the arrow buttons on the controller. This would give the Ps4 a fresh start by resetting everything but, do not worry as you wont be needing to re-install your games nor your Playstation Accounts.
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