Unresponsive Screen and Buttons (iPhone XS MAX)

This morning when I woke up with my alarm. My phone, iPhone XS Max, is not responsive at all. The screen is not working. I immediately try to reboot it. Then nothing happened, then I realize my buttons (both battery and volume up and down buttons) are not working as well. You can still click on it, but nothing will happen. Does anyone know what I could do to fix?