2011 Volvo V60 cutting out

Hi, hoping for some advice / help.

On Saturday I was driving my car as normal and suddenly the car cut out, check engine light came on, DSTC service required and engine service required message came up. The car didn’t start straight away but after a few tries started no problem although a rough idle for a second or 2, drove fine until today where the same issue happened, started up no problem right away again, driving fine again. Got one of them diesel cleaners and put it in on Saturday after the first time thinking it might have been a bad batch of diesel.

Any idea of what could be causing it? Bad cam / crank position sensor or something worse?

Car has 108k miles and had a new timing belt at 85k miles