Tellstick binding

Hi,

my log sometimes get this error message:

00:14:39.284 [ERROR] [ellstick.device.TellsticEventHandler] - Failed in TDSensorEvent
java.lang.NullPointerException
	at org.openhab.binding.tellstick.handler.core.TelldusCoreBridgeHandler.onRequest(TelldusCoreBridgeHandler.java:231)
	at org.tellstick.device.TellsticEventHandler.notifySensorListeners(TellsticEventHandler.java:90)
	at org.tellstick.device.TellsticEventHandler.access$2(TellsticEventHandler.java:85)
	at org.tellstick.device.TellsticEventHandler$3.invoke(TellsticEventHandler.java:170)
	at sun.reflect.GeneratedMethodAccessor26.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)[:1.8.0_121]
	at java.lang.reflect.Method.invoke(Method.java:498)[:1.8.0_121]
	at com.sun.jna.CallbackReference$DefaultCallbackProxy.invokeCallback(CallbackReference.java:471)[217:org.openhab.binding.tellstick:2.1.0]
	at com.sun.jna.CallbackReference$DefaultCallbackProxy.callback(CallbackReference.java:501)[217:org.openhab.binding.tellstick:2.1.0]

Obviously it is from the tellstick binding that I am using (which appears to work ok though).
Is there anything I can do about this?