Zibase binding in OH2

Hi,
i’m trying to use OH1 zibase binding in OH2. It works great for emiter (like Oregon temperature sensor) but when i try to use a Chacon receiver, i have an error : Java Null pointer

EventAdmin: Exception during event dispatch [org.osgi.service.event.Event [topic=op
enhab/command/L_Cuisine_Ruban] | {org.osgi.service.event.EventHandler, org.osgi.service.cm.ManagedService}={event.topics=openhab/command/*, service.pid=org.
openhab.zibase, component.name=org.openhab.binding.zibase.binding, component.id=270, service.id=430, service.bundleid=262, service.scope=bundle} | Bundle(or
g.openhab.binding.zibase_1.8.3 [262])]
java.lang.NullPointerException
        at org.openhab.binding.zibase.internal.ZibaseBindingConfigReceiver.sendCommand(ZibaseBindingConfigReceiver.java:77)[262:org.openhab.binding.zibase:1
.8.3]
        at org.openhab.binding.zibase.internal.ZibaseBinding.internalReceiveCommand(ZibaseBinding.java:191)[262:org.openhab.binding.zibase:1.8.3]
        at org.openhab.core.binding.AbstractBinding.receiveCommand(AbstractBinding.java:97)[174:org.openhab.core.compat1x:2.0.0.201612051711]
        at org.openhab.core.events.AbstractEventSubscriber.handleEvent(AbstractEventSubscriber.java:42)[174:org.openhab.core.compat1x:2.0.0.201612051711]
        at org.apache.felix.eventadmin.impl.handler.EventHandlerProxy.sendEvent(EventHandlerProxy.java:415)[3:org.apache.karaf.services.eventadmin:4.0.4]
        at org.apache.felix.eventadmin.impl.tasks.HandlerTask.run(HandlerTask.java:90)[3:org.apache.karaf.services.eventadmin:4.0.4]
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)[:1.8.0_102]
        at java.util.concurrent.FutureTask.run(FutureTask.java:266)[:1.8.0_102]
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)[:1.8.0_102]
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)[:1.8.0_102]
        at java.lang.Thread.run(Thread.java:745)[:1.8.0_102]

I’m using an item like that :

Switch LivingRoomLight "Living room light" <switch> { zibase="RCV,A1,CHACON" }

Any ideas ?
Thanks !!