Front control panel displays " locked'

After self cleaning cycle was performed the front panel dispolays LOC and LOCKED. The oven door opens without any problems. I can change the time settings & and turn on the oven light only on the display and do nothing else. The top four surface burners are operating but i just can’t use the oven functions ( can’t clear the LOCKED condition). I powered the unit for 10 minutes and didn’t matter. Any help / suggestions is being appreciated.