Hyundai tucson 2013 got problem with the stop light not working but the middle light
 

Dear sir
My car is hyundai tucson 2013 got problem with the stop light not working but the middle light on the trunk is working and can't open the trunk ( got one push button switch at the trunk itself only) the switch is working I have tested it with multimeter. The bulb light out side the car direct on the battery is working but when I press the break is not working. I scan it with the bluedriver it's doesn't show any errors. Kindly help me