Shelly Binding Shelly4PM

Hi Forum!

Can anybody help me?
I can’t configure my Shelly4PM in openhab.
Thing : status unknown
In the webinterface of the shelly, all works normal.
ping is also no problem…

In openhab log there is one error:

2021-12-25 14:44:28.879 [WARN ] [mmon.WrappedScheduledExecutorService] - Scheduled runnable ended with an exception: 
java.lang.NullPointerException: null
	at org.openhab.binding.shelly.internal.handler.ShellyBaseHandler.initializeThing( ~[?:?]
	at org.openhab.binding.shelly.internal.handler.ShellyBaseHandler.lambda$0( ~[?:?]
	at java.util.concurrent.Executors$ ~[?:?]
	at ~[?:?]
	at java.util.concurrent.ScheduledThreadPoolExecutor$ ~[?:?]
	at java.util.concurrent.ThreadPoolExecutor.runWorker( [?:?]
	at java.util.concurrent.ThreadPoolExecutor$ [?:?]
	at [?:?]

My other 5 Shellys have no problems.

The solution is MQTT.
See this post: