500 error ad infinitum
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**Describe The Problem:**
<!-- A clear and concise description of what the issue is. -->
Cameras and thumbnails for them no longer update in the Home app. When attempting to view them a "no response" error is provided.  In Homebridge the logs are filled with 500 errors.

**To Reproduce:**
<!-- Steps to reproduce the behavior. -->
Restart child bridge for homebridge-unifi-protect or the rPi running the Homebridge instance.
**Logs:**

<!-- In order to be helpful, include the relevant logs from Homebridge, if applicable. -->
```
[24/03/2023, 14:51:30] [homebridge-unifi-protect] Restarting Process...
[24/03/2023, 14:51:31] [homebridge-unifi-protect] Launched child bridge with PID XXXXX
[24/03/2023, 14:51:32] Registering platform 'homebridge-unifi-protect.UniFi Protect'
[24/03/2023, 14:51:32] [homebridge-unifi-protect] Loaded homebridge-unifi-protect v5.5.4 child bridge successfully
[24/03/2023, 14:51:32] Loaded 9 cached accessories from cachedAccessories.XXXXXXXXXXX.
[24/03/2023, 14:51:33] Homebridge v1.6.0 (HAP v0.11.0) (homebridge-unifi-protect) is running on port XXXXX.
[24/03/2023, 14:51:33] [homebridge-unifi-protect] API access error: 500 - Internal Server Error
[24/03/2023, 14:51:33] [homebridge-unifi-protect] 192.168.x.x: Unable to retrieve NVR configuration information from UniFi Protect. Will retry again later.
[24/03/2023, 14:51:33] [homebridge-unifi-protect] API access error: 500 - Internal Server Error
[24/03/2023, 14:51:33] [homebridge-unifi-protect] 192.168.x.x: Unable to retrieve NVR configuration information from UniFi Protect. Will retry again later.
[24/03/2023, 14:51:33] [homebridge-unifi-protect] API access error: 500 - Internal Server Error
[24/03/2023, 14:51:33] [homebridge-unifi-protect] 192.168.x.x: Unable to retrieve NVR configuration information from UniFi Protect. Will retry again later.
```

**Homebridge Configuration:**

```json
{
    "controllers": [
        {
            "address": "192.168.x.x",
            "name": "DMP",
            "password": "password1234",
            "username": "homebridgeuser"
        }
    ],
    "videoProcessor": "/usr/local/bin/ffmpeg",
    "platform": "UniFi Protect",
    "_bridge": {
        "username": "XX:XX:XX:XX:XX:XX",
        "port": XXXXX
    }
}
```

**Screenshots:**
<!-- If applicable, add screenshots to help explain your problem. -->

**Environment:**

* **Homebridge Version:** v1.6.0 (HAP v0.11.0)<!-- homebridge -V -->
* **Node Version:** v16.19.0<!-- node -v -->
* **Homebridge-UniFi-Protect Plugin Version:** v5.5.4 (running as child bridge)
* **UniFi Protect Version:** 2.2.11<!-- Read the Protect version line from https://unifi-controller/protect/settings -->
* **UniFi Protect Controller Type:** UDMP <!-- UCKgen2+, UDMP, UNVR, etc. -->
* **UniFi Protect Controller Firmware Version:** 2.5.17<!-- Read the firmware line from https://unifi-controller/settings/general -->
* **Apple Device and iOS / macOS / iPadOS / tvOS Version:** iPadOS 16.3.1 <!-- Type of Apple device you're using and associated OS version -->
* **Operating System and OS Version:** Raspbian GNU/Linux Buster (10) <!-- Raspbian / Ubuntu / Debian / Windows / macOS / Docker -->

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I've restarted the child bridge, the rPi the homebridge parent is running on as well as just the Protect app on the Dream Machine Pro. Finally I shutdown (cold) the DMP, unplugged and plugged back in. Nothing changes the error and, of course, the cameras video/thumbnails do not populate in the Home app.