Homebridge Crashing Every Few Minutes
**Describe The Problem:**
Homebridge will crash and restart every few minutes.

**To Reproduce:**
Seems to be semi-random. Opening or closing a steam - particularly the Doorbell stream - seems the most likely action to trigger it but it does not happen every time.

I am using a non-administrator unifi protect user and I have unifi's smart motion events turned off, if that makes a difference.

**Logs:**
```
 TypeError: Cannot read properties of undefined (reading 'hksv')
    at WebSocket.nvrApi.eventsWs.on.updatesListener (/var/lib/homebridge/node_modules/homebridge-unifi-protect/src/protect-nvr-events.ts:246:37)
    at WebSocket.emit (node:events:527:28)
    at Receiver.receiverOnMessage (/var/lib/homebridge/node_modules/homebridge-unifi-protect/node_modules/ws/lib/websocket.js:1169:20)
    at Receiver.emit (node:events:527:28)
    at Receiver.dataMessage (/var/lib/homebridge/node_modules/homebridge-unifi-protect/node_modules/ws/lib/receiver.js:513:14)
    at Receiver.getData (/var/lib/homebridge/node_modules/homebridge-unifi-protect/node_modules/ws/lib/receiver.js:446:17)
    at Receiver.startLoop (/var/lib/homebridge/node_modules/homebridge-unifi-protect/node_modules/ws/lib/receiver.js:148:22)
    at Receiver._write (/var/lib/homebridge/node_modules/homebridge-unifi-protect/node_modules/ws/lib/receiver.js:83:10)
    at writeOrBuffer (node:internal/streams/writable:389:12)
    at _write (node:internal/streams/writable:330:10)

```
**Homebridge Configuration:**
```
{
    "bridge": {
        "name": "Homebridge",
        "username": "",
        "port": 51192,
        "pin": "",
        "advertiser": "bonjour-hap"
    },
    "accessories": [],
    "platforms": [
        {
            "name": "Config",
            "port": 8581,
            "platform": "config"
        },
        {
            "controllers": [
                {
                    "address": "10.0.1.9",
                    "password": "",
                    "username": ""
                }
            ],
            "options": [
                "Disable.Doorbell.Messages"
            ],
            "platform": "UniFi Protect"
        }
    ]
}
```

**Screenshots:**
![IMG_1764](https://user-images.githubusercontent.com/37557891/184554964-f6732124-de63-41a3-8c75-e30225d54320.jpeg)

**Environment:**
Homebridge Version: 1.5.0
Node Version: 16.16.0
Homebridge-UniFi-Protect Plugin Version: 5.5.4
Operating System and OS Version: Ubuntu Jammy Jellyfish (22.04.1 LTS)