auto solutions

I have a 2007 Mercedes GL 450 4MATIC. As of today the check engine light came on and in red the saying "TAKE TO WORKSHOP WITHOUT SHIFTING GEARS" came on. Got the vehicle parked. Once attempted to re crank the vehicle all dash lights are on along with the same "take to workshop" and vehicle will not crank. No turning over or anything. I can hear multiple relays kicking in and out as well as the air ride suspension raising and lowering. Tried reading codes but cant get in and reset. Tried disconnecting battery for a minute but nothing changed. Any ideas or suggestions on a solution to at the very least get it to crank?