Acer Aspire 5 a515 51g intel core i7 won't turn on after abrutly turned off.

As I was using my computer for playing a game, the computer suddenly turned off for no reason. I tried turning it back on, but it doesnt appear to do so. It was still plug in to the charger, but the lights as an indicator that it is charging was blinking every 5 seconds. I followed the internet's advice to fix the problem. The advice was to press and hold the battery button hole for 15 to 20 seconds to restart battery and try charging again and turn on. But this time, the charging battery light doesnt turn on even when it is connected to the charger and it won't turn on. I repeat the same method again to try if it will turn it on this time, but the same resultd happened. Help me