Edit: After half day, my wife’s Mac started having the same problem. I have then applied the solution that I found in the Apple
How Did Steve Jobs Ever Get Away With Out No License Plate –
How you ever wondered how Steve Jobs managed to drive around for years with no license plate on his car ? Well iTWire are reporting that Steve or someone close found a loop hole in the California vehicle laws. The law said that , Anyone with a brand new car had a maximum of six months to fix a licence plate to the car.
So Jobs made an arrangement with the leasing company; he would always change cars during the sixth month of the lease, exchanging one silver Mercedes SL55 AMG for another identical one. At no time would he ever be in a car as old as six months; and thus there was no legal requirement to have the number plates fitted.