Generated Warning for Serial Number message in Homebridge
Hello, I am receiving the following warning over and over in Homebridge. I am running Homebridge v1.3.2 and v0.16.2 if the plugin. 
I'm running homebridge on a windows environment.

[homebridge-xiaomi-roborock-vacuum] This plugin generated a warning from the characteristic 'Serial Number': characteristic value expected string and received undefined. 

So I ran debug Mode and this is what I get

[homebridge-xiaomi-roborock-vacuum] This plugin generated a warning from the characteristic 'Serial Number': characteristic value expected string and received undefined. See https://git.io/JtMGR for more info.
[3/8/2021, 9:16:57 PM] [homebridge-xiaomi-roborock-vacuum] Error: 
    at SerialNumber.Characteristic.characteristicWarning (C:\Users\User\AppData\Roaming\npm\node_modules\homebridge\node_modules\hap-nodejs\src\lib\Characteristic.ts:2164:105)
    at SerialNumber.Characteristic.validateUserInput (C:\Users\User\AppData\Roaming\npm\node_modules\homebridge\node_modules\hap-nodejs\src\lib\Characteristic.ts:2077:16)
    at C:\Users\User\AppData\Roaming\npm\node_modules\homebridge\node_modules\hap-nodejs\src\lib\Characteristic.ts:1517:24
    at C:\Users\User\AppData\Roaming\npm\node_modules\homebridge\node_modules\hap-nodejs\src\lib\util\once.ts:9:18
    at module.exports (C:\Users\User\AppData\Roaming\npm\node_modules\homebridge-xiaomi-roborock-vacuum\lib\callbackify.js:6:5)


Any help would be appreciated. 