Hi my name isXXXXX this is caused by a power surge and you will need to RAM clear it and reprogram it. To RAM clear it, turn the key to reg then remove at least one battery. Now unplug it and count to 10, plug it back in, and reinstall the battery. Now use your manual to reprogram it (i.e. date, time, taxes, etc).
레지스터의 키를 "REG" 로 돌린다음 바테리 를 빼시고 전원을 끄고 (플러그 빼시고) 10 초쯤 기다렸다가 배터리 다시끼우고 전원을 다시 연결해보세요.