Why does my Ps4 crash when I start applications?

Why does my Ps4 crash when starting applications and does anyone know what to do about it? (After that the system memory has to be checked)

The software may be damaged. You can then install the ps4.

Is more precise on the Internet. Have a look at the ps page.

But note, all of your game data will be lost. I.e. All saves etc but not the trophies as the trophies are saved online.

Save your scores via the ps cloud.

*initialize.