Al. Murray

My mate has a 2011 nissan D40 nivara tekna 2500cc, He recently put it into 4wd high to go across a muddy field but when he tried to go back to 2wd it got stuck between 2 and 4 wheel drive with the dashboard showing the "transfer box and front wheels light" flashing. He managed to eventually get it into 2wd but is reluctant to use 4wd again. Is this a common fault ?or has anyone expeienced this and how did they solve it. Regards Al.