The first thing we recommend you do is try a system update, keep in mind that if your system is out of date it can cause errors. Then you will have to restart your console as long as there is no download in progress, so cancel all downloads and continue restarting, which should correct the problem.
If you still do not correct the problem, you will have to reset the PS5 to the factory, and then download the system settings and saved games from PS5N.
For this you will have to start by accessing Settings> System> Reset options> Reset your console.
The key is to prevent the console from going to sleep while you're in the game.
So ends our guide on how to fix error code CE-109801-9 in PS5, we hope that it has been of the greatest possible use to you and that you have managed to correct the problem quickly and that the developers deal with it as soon as possible.