2s not able to change speed and always set to Auto when switch on

[KPPT87]

Hi
I'm unable to change speed on my 2s device and when switch on the device is set to Auto mode every time.

Here's my Logs :

[02/02/2022, 20:18:08] [homebridge-xiaomi-mi-air-purifier] **This plugin threw an error from the characteristic 'Rotation Speed': Unhandled error thrown inside write handler for characteristic: device.changeFanSpeed is not a function. See https://git.io/JtMGR for more info.**
[02/02/2022, 20:18:08] [homebridge-xiaomi-mi-air-purifier] TypeError: device.changeFanSpeed is not a function
    at RotationSpeed.setHandler (/usr/local/lib/node_modules/homebridge-xiaomi-mi-air-purifier/src/characteristics/air-purifier/rotation-speed.ts:35:20)
    at runMicrotasks (<anonymous>)
    at processTicksAndRejections (node:internal/process/task_queues:96:5)

Plugin Config:

    "accessories": [
        {
            "name": "Air Purifier",
            "address": "1xxxxx",
            "token": "xxxxxxx",
            "enableAirQuality": true,
            "enableTemperature": true,
            "enableHumidity": true,
            "filterChangeThreshold": 5,
            "enableFanSpeedControl": true,
            "enableChildLockControl": false,
            "accessory": "XiaomiMiAirPurifier"
        }

Environment:

• Plugin Version: 2.0.2
• Homebridge Version: <4.42.0 -->
• Node.js Version: <v16.13.2>
• NPM Version: <v8.3.1>
• Device: <!-- Xiaomi Air Purifier 2s
• Operating System: <!-- Raspbian>

Please help
Thank you