java.lang.NullPointerException
	at org.ametys.cms.content.indexing.solr.observation.ObserverHelper.isNotSuspendedThreadObservationForIndexation(ObserverHelper.java:52)
	at org.ametys.cms.content.indexing.solr.observation.IndexContentObserver.observe(IndexContentObserver.java:81)
	at org.ametys.core.observation.ObservationManager._observesEvent(ObservationManager.java:202)
	at org.ametys.core.observation.ObservationManager.notify(ObservationManager.java:146)
	at org.ametys.cms.workflow.AbstractContentFunction._setCurrentStepIdAndNotify(AbstractContentFunction.java:103)
	at org.ametys.cms.workflow.SetCurrentStepIdAndNotifyFunction.execute(SetCurrentStepIdAndNotifyFunction.java:43)
	at sun.reflect.GeneratedMethodAccessor124.invoke(Unknown Source)