try a battery reset:
https://us.answers.acer.com/app/answers/detail/a_id/34843/~/acer-internal-battery-reset
if it's still not working, if you are still under warranty, please call Acer support service.
can be a dead HDD, ram issue, CPU issue or corrupted BIOS; so it's hard to fix it without opening the bottom of your laptop to troubleshoot.