[Peugeot 5008 rides]

Hi, My Peugeot 5008, 2009 giving me a power steering fault light warning, but this happen only
when I'm starting the car, and is not happening everytime I start.

There is NO issue when Im driving.

Any clue why this is happening?
I am not a car guy, Im just driving it.
Any help appreciate
Thank you in advance