My 2006 Range Rover has been turning on great, except for the past 2 days. Yesterday, when I'd insert the key in the ignition and turn it, it would not turn on. I took the key out and let it sit for a minute or two and then try again. Yesterday it was turning on on the second attempt. Today, it just would not start. When the key is inserted and turned, the interior lights, radio and all other lights turn on, but it won't start. When the key is turned there is click sound. Earlier today, the info panel was saying 'reduced engine performance', but has stopped displaying that message. Any ideas of what the issue may be?