Functions on Panasonic NR-B30FG1WB ?

My Panasonic NR-B30FG1WB fridge freezer is only 10 months old. Has been working well but its special "functions" such as Vitamin Safe, Hygiene active mode,holiday mode, child lock and Economy mode have stopped working properly. They come on when correct button pressed, but stop activating after fridge door is opened. Does anyone know what's causing this and whether it is repairable ? Thanks in advance.