homebridge reboot continuously after set meross mss310
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**Describe Your Problem:**
homebridge reboot continuously after set meross mss310 and activate the plug in. Also in the HomeKit App all devices i have installed with HomeBridge doesn't work. if i set wrong the ip of meross other devices works fine but not the meross smart plug.
Can you help me please? Am I doing something wrong?
Thanks for support

**Logs:**
```
[15/11/2020, 14:32:47] [Luce piante] calling getOnCharacteristicHandler for MSS310 at 192.168.99.8...
[15/11/2020, 14:32:47] TypeError: Cannot read property 'togglex' of undefined
    at Meross.getOnCharacteristicHandler (/usr/local/lib/node_modules/homebridge-meross/index.js:297:41)
    at processTicksAndRejections (node:internal/process/task_queues:93:5)`
```

**Homebridge Config:**

```
{
    "bridge": {
        "name": "Homebridge A281",
        "username": "0E:B5:F0:9A:A2:81",
        "port": 51952,
        "pin": "784-28-894"
    },
    "accessories": [
        {
            "model": "MSS310",
            "name": "Luce piante",
            "deviceUrl": "192.168.99.8",
            "channel": 0,
            "messageId": "ba192b6ef6d1672757b10c87364d802d",
            "timestamp": 1605445877,
            "sign": "780e655e5fe04f2c3c6276e8cf65cbbe",
            "accessory": "Meross"
        }
    ],
    "platforms": [
        {
            "name": "Config",
            "port": 8581,
            "platform": "config"
        },
        {
            "name": "HarmonyHub",
            "hubIP": "192.168.99.10",
            "publishAllTVAsExternalAccessory": false,
            "TVAccessory": true,
            "configureAccesscontrol": false,
            "mainActivity": "Sky",
            "activitiesToPublishAsInputForTVMode": [
                "Sky",
                "Apple TV",
                "Netflix",
                "Infinity",
                "Plex",
                "TimVision"
            ],
            "playPauseBehavior": false,
            "remoteOverrideCommandsList": [
                {
                    "ActivityName": "Alza il volume",
                    "CommandsList": [
                        {
                            "CommandName": "VOLUME_DOWN",
                            "NewCommand": "PioneerAVReceiver;VolumeDown"
                        },
                        {
                            "CommandName": "VOLUME_UP",
                            "NewCommand": "PioneerAVReceiver;VolumeUp"
                        }
                    ]
                }
            ],
            "switchAccessories": false,
            "publishGeneralMuteSwitch": false,
            "publishGeneralVolumeSlider": false,
            "publishGeneralVolumeSwitches": false,
            "linkVolumeControlToTV": false,
            "publishSwitchActivitiesAsIndividualAccessories": false,
            "devicesToPublishAsAccessoriesSwitch": [
                "Pioneer AV Receiver VolumeUp",
                "Pioneer AV Receiver VolumeDown "
            ],
            "showCommandsAtStartup": false,
            "platform": "HarmonyHubWebSocket"
        },
        {
            "username": "webcavicchi@gmail.com",
            "password": "virusss84!",
            "countryCode": "IT",
            "devices": [
                {
                    "ipAddress": "192.168.99.71",
                    "serialNumber": "VW3-EU-NHA0964A",
                    "enableAutoModeWhenActivating": true,
                    "enableOscillationWhenActivating": true,
                    "isNightModeEnabled": true,
                    "isJetFocusEnabled": true,
                    "isContinuousMonitoringEnabled": true,
                    "isTemperatureSensorEnabled": true,
                    "isHumiditySensorEnabled": true,
                    "isAirQualitySensorEnabled": true,
                    "isSingleSensorAccessoryModeEnabled": true,
                    "isSingleAccessoryModeEnabled": true,
                    "isFullRangeHumidity": true
                }
            ],
            "platform": "DysonPureCoolPlatform"
        }
    ]
}
```

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

**Environment:**

* **Node.js Version**: v14.15.0
* **NPM Version**:  v6.14.8
* **Homebridge Version**: 1.2.3 
* **Homebridge Meross Plugin Version* v3.2.0*:
* **Homebridge Config UI X Plugin Version* v4.33.0*:
* **Operating System**: Raspbian 


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