Battery not detected acer aspire E11

Oct 11, 2018
It was 77% before I shut it down the night before. I plugged it yesterday to charge and it wasn't showing the LED light as usual. So I put it on and checked the battery icon and it had an 'x' on it showing battery not detected. Immediately I unplugged the charger, the system went off... i can turn on the system now except its plugged to electricity. This system is barely a month old. Why can I solve this problem?