unable to control Sonoff in these few days
I've have install and using homebridge-ewelink-max v0.1.24 plugin few months (it works normally), but I found it won't work since last week.
The case is that I can see the devices at iOS "Home" app, but I can't switch on/off the device throughs "Home" app.

I found the following log in homebridge when I switch on/off using iOS "Home" app

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```
[7/11/2020, 6:13:21 pm] [eWeLink] Sending login request [{"action":"userOnline","userAgent":"app","version":6,"nonce":"xxxxxxxxxx","apkVesrion":"1.8","os":"ios","at":"xxxxxxxxxxxxxxxxxxx","apikey":"xxxxxxxxxxxxxx","ts":"xxxxxxxxxxxx","model":"iPhone10,6","romVersion":"11.1.2","sequence":xxxxxxxxxxxxxx}]
[7/11/2020, 6:13:21 pm] [eWeLink] WebSocket messge received:  {"error":400,"reason":"Bad Request","apikey":"xxxxxxxxxxxxxxxxxx","sequence":"xxxxxxxxxxxxx","actionName":"userOnline"}
```

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What can I do to fix the error? 

Many thanks

