Agent failing when sending a OR from one domain to another using HTTPPOST

Hi,

We are trying to send a OR from one domain to another on a particular event...but the agent fails with the following error...used to work fine..not sure whats wrong..tried everything but no avail ....Please help if someone knows what the error message conveys :

java.lang.NullPointerException java.lang.NullPointerException at glog.business.order.TOrderRelease.postLoadTShipUni ts(TOrderRelease.java:604) at glog.business.order.TOrderRelease.postLoad(TOrderR elease.java:558) at glog.business.order.TOrderRelease.<init>(TOrderRel ease.java:270) at glog.server.query.order.OrderReleasePersistenceHel per.packAndCalcOrder(OrderReleasePersistenceHelper .java:130) at glog.server.agent.business.order.ORAdd.process(ORA dd.java:79) at glog.server.agent.business.order.ORActionTopic.per sist(ORActionTopic.java:47) at glog.server.agent.PersistActionTopic.execute(Persi stActionTopic.java:34) at glog.server.agent.ActionWorkflow.execute(ActionWor kflow.java:49) at glog.server.workflow.WorkflowSessionBean.execute(W orkflowSessionBean.java:64) at glog.server.workflow.WorkflowSessionNonTransServer SideEJBWrapper.execute(WorkflowSessionNonTransServ erSideEJBWrapper.java:40) at glog.server.workflow.WorkflowSessionNonTransServer SideEJBWrapper_t6tuwu_EOImpl.__WL_invoke(Unknown Source) at weblogic.ejb.container.internal.SessionRemoteMetho dInvoker.invoke(SessionRemoteMethodInvoker.java:40 ) at glog.server.workflow.WorkflowSessionNonTransServer SideEJBWrapper_t6tuwu_EOImpl.execute(Unknown Source) at glog.server.workflow.WorkflowManager.execute(Workf lowManager.java:352) at glog.server.workflow.Trigger.trigger(Trigger.java: 122) at glog.util.event.MemoryEventQueueRunnable.processEv ent(MemoryEventQueueRunnable.java:145) at glog.util.event.MemoryEventQueueRunnable.run(Memor yEventQueueRunnable.java:100) at glog.util.event.EventThread.run(EventThread.java:8 6) at java.lang.Thread.run(Thread.java:662)

thanks