Suspension fault plz help lol

hi Guys and gals, so I've recently bought myself a 2005 55 Range Rover vogue 3.0 td6. Alls been going well until today I switched her on and the message SUSPENSION LOWERED came up on the display, also no lights are on the switch. Can anyone help or direct me in the right direction. Many thanks in advanced.

Diagnostics would be my first call