multiple faults. Gear box, EPS, parking brake. Advice please.

Hi peeps

I've got a 2008 C4 Grand Picasso with a full 4 speed box and 3 hours ago everything was fine. However I went to pop to the shops and an error flashed up "parking brake fault" then I went to go in to drive and another warning flashed up "gearbox fault" then another warning flashed up "ESP fault"

Car won't select a gear won't move but I can hear the noise of the parking brake engaging and disengaging when the button is pulled.

Any ideas?

Thanks Chris