My Galaxy S9 has a broken screen and won't turn on and vibrates

A while back I dropped my Galaxy S9 down the crack of an elevator shaft at work and got it retrieved by maintenance. The screen was severely cracked but it was still working perfectly fine. Then a couple of months later it turned off and wouldn’t turn back on, so I plugged it in and it started to vibrate every 2-5 minutes, Can anyone help me?