Cameras and flashlight stopped working

Hi and welcome to the forum

I agree it seems odd that both stopped at the same time.

My first query is, if you have an SD card and how it is formatted.
Secondly have you tried starting in ‘Safe mode’ ?

SD card issues: see this recent post:

and

Then there is this

https://support.fairphone.com/hc/en-us/articles/360048843571