AVM Fritzbox Binding Problems

Hey,

I have some issues with the AVM-FRtitzbox.Binding. It works finewith my Sitemap and I can use to switch manually the state of the heaters. But if I’m working with the iCalendar-Binding to automate the heater times it is not working.

By the way I’m using the newest versions of OH and for the Binding.

In the openhab.logs

020-11-24 21:30:01.077 [ERROR] [nal.common.AbstractInvocationHandler] - An error occurred while calling method 'ThingHandler.handleCommand()' on 'org.openhab.binding.avmfritz.internal.handler.AVMFritzHeatingDeviceHandler@4da2f13e': null
java.lang.NullPointerException: null
	at org.openhab.binding.avmfritz.internal.handler.AVMFritzBaseThingHandler.handleCommand(AVMFritzBaseThingHandler.java:350) ~[?:?]
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_265]
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_265]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_265]
	at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_265]
	at org.eclipse.smarthome.core.internal.common.AbstractInvocationHandler.invokeDirect(AbstractInvocationHandler.java:152) [bundleFile:?]
	at org.eclipse.smarthome.core.internal.common.InvocationHandlerSync.invoke(InvocationHandlerSync.java:59) [bundleFile:?]
	at com.sun.proxy.$Proxy687.handleCommand(Unknown Source) [?:?]
	at org.eclipse.smarthome.core.thing.internal.profiles.ProfileCallbackImpl.handleCommand(ProfileCallbackImpl.java:74) [bundleFile:?]
	at org.eclipse.smarthome.core.thing.internal.profiles.SystemDefaultProfile.onCommandFromItem(SystemDefaultProfile.java:48) [bundleFile:?]
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_265]
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_265]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_265]
	at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_265]
	at org.eclipse.smarthome.core.internal.common.AbstractInvocationHandler.invokeDirect(AbstractInvocationHandler.java:152) [bundleFile:?]
	at org.eclipse.smarthome.core.internal.common.Invocation.call(Invocation.java:52) [bundleFile:?]
	at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_265]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [?:1.8.0_265]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [?:1.8.0_265]
	at java.lang.Thread.run(Thread.java:748) [?:1.8.0_265]

At the event logs it looks right.

2020-11-24 21:30:01.044 [ome.event.ItemCommandEvent] - Item 'Thermostat_Wohnzimmer_sollTemperatur' received command 21
2020-11-24 21:30:01.053 [ome.event.ItemCommandEvent] - Item 'Thermostat_Badezimmer_sollTemperatur' received command 21
2020-11-24 21:30:01.069 [ome.event.ItemCommandEvent] - Item 'Thermostat_Flur_sollTemperatur' received command 21
2020-11-24 21:30:01.081 [ome.event.ItemCommandEvent] - Item 'Thermostat_Kueche_sollTemperatur' received command 21

Some ideas?

Thanks for your help.

Best,
Max