sonoff The "string" argument must be one of type string

[lylabsiob]

Systemdata	Bitte Ausfüllen
Hardwaresystem:	Synology NAS DS916
Arbeitsspeicher:	8GB
Festplattenart:	HDD
Betriebssystem:	DSM 6.2.4-25556
Node-Version:	v12.22.5
Nodejs-Version:	10.x.x
NPM-Version:	6.14.14
Installationsart:	docker
Image genutzt:	Ja
Ort/Name der Imagedatei:	buanet/iobroker:latest-v5

Hello, the sonoff adapter continues to throw the follwing error and stops working:

TypeError [ERR_INVALID_ARG_TYPE]: The "string" argument must be of type string or an instance of Buffer or ArrayBuffer. Received type number (1) at Function.byteLength (buffer.js:725:11) at publish (/opt/iobroker/node_modules/mqtt-packet/writeToStream.js:334:51) at generate (/opt/iobroker/node_modules/mqtt-packet/writeToStream.js:34:14) at Writable.write [as _write] (/opt/iobroker/node_modules/mqtt-connection/lib/writeToStream.js:13:9) at doWrite (_stream_writable.js:403:12) at writeOrBuffer (_stream_writable.js:387:5) at Writable.write (_stream_writable.js:318:11) at Connection.Duplexify._write (/opt/iobroker/node_modules/duplexify/index.js:208:22) at doWrite (/opt/iobroker/node_modules/readable-stream/lib/_stream_writable.js:428:64) at writeOrBuffer (/opt/iobroker/node_modules/readable-stream/lib/_stream_writable.js:417:5)

Any ideas how to solve the issue?

Issue reported by bot, see: https://github.com/ioBroker/ioBroker.sonoff/issues/209

iobroker-sentry-github-app[bot] created this issue in ioBroker/ioBroker.sonoff

closed TypeError [ERR_INVALID_ARG_TYPE]: The "string" argument must be one of type string, Buffer, or ArrayBuffer. Received type number #209