java.lang.IllegalStateException: El lector debe estar en un evento START_ELEMENT, no en un evento 8.

Please could you help me to indentify this error , I am trying to implement this client to retrieve some data , please I apreciate your help. I think that could be about format xml.

Exception in thread "main" java.lang.IllegalStateException: El lector debe estar en un evento START_ELEMENT, no en un evento 8.
at com.sun.xml.bind.v2.runtime.unmarshaller.UnmarshallerImpl.unmarshal0(UnmarshallerImpl.java:362)
at com.sun.xml.bind.v2.runtime.unmarshaller.UnmarshallerImpl.unmarshal(UnmarshallerImpl.java:349)
at com.hashmapinc.tempus.witsml.client.StoreSoapBindingStub.fromOM(StoreSoapBindingStub.java:1441)
at com.hashmapinc.tempus.witsml.client.StoreSoapBindingStub.wMLS_GetVersion(StoreSoapBindingStub.java:503)
at com.hashmapinc.tempus.witsml.client.Client.getVersion(Client.java:166)
at com.hashmapinc.tempus.witsml.client.Client.connect(Client.java:187)
at com.hashmapinc.tempus.witsml.example.MyWitsmlClient.main(MyWitsmlClient.java:64)