Hope you are doing well !
Are you a Lennar Homes user?
Because it can be that after a power outage or reboot the Switch ICX -7150-C12P ( main box in cabinet closet ) stop proving power to the Access Point so for that reason there are no lights on.
If you have more than 1 Access Point could you please check or Swap cables on the Switch
I leave a short guide for most common Lennar setups :
Most common Setups for Lennar homes users:
Also if the ICX-7150-C12P has a yellow light on the system should be stuck on boot mode ( issue during the boot process )
If you are not a Lennar home user please connected the AP in a another PoE Switch or Power injector to confirm that the AP is faulty ( look at the model in the sticker to provided the correct Power to the model )
how to remove the AP from the ceiling.: https://www.youtube.com/watch?v=vFD_ByQWGH0