ANNKE N46PCK - PoE Cameras are not working with NVR

We had a power outage on Friday (09 June 2023). Now we can access the device, but unfortunately the NVR is unable to give power to the camera's connected. We tried to reboot the device no luck. Even tried to remove the HDD and then connect the camera's and check. But unfortunately it did not work. All the cameras are showing with status as exceptions on the NVR Firmware interface.