Can not delete archived document with wmtnarchivearchive

I use wm.tn.archive:archive service want to delete document in IS4.6&Cloudscape DB.
But when I run the service show as follow message :

2003-12-04 15:33:41 CST [B2BUNKW.TRANET.0100] Starting BizDoc archive operation [TRNSERV.000003.000007]
2003-12-04 15:33:41 CST [B2BUNKW.TRANET.0105] Deleting documents received before 2003/5/18 [TRNSERV.000003.000002]
2003-12-04 15:33:51 CST [B2BUNKW.TRANET.0097] Error running archive operation: com.wm.app.tn.db.DatastoreException: Couldnt delete archived documents
(0) COM.jbms._6._3130: A method on a btree open scan has been called prior to positioning the scan on the first row (ie. no next() call has been made yet).
(1) COM.jbms._6._3130: A method on a btree open scan has been called prior to positioning the scan on the first row (ie. no next() call has been made yet).
[TRNSERV.000003.000010]
2003-12-04 15:33:51 CST [B2BUNKW.TRANET.9998] Exception => Couldnt delete archived documents
(0) COM.jbms._6._3130: A method on a btree open scan has been called prior to positioning the scan on the first row (ie. no next() call has been made yet).
(1) COM.jbms._6._3130: A method on a btree open scan has been called prior to positioning the scan on the first row (ie. no next() call has been made yet).
COM.jbms._6._3130: A method on a btree open scan has been called prior to positioning the scan on the first row (ie. no next() call has been made yet).
COM.jbms._6._3130: A method on a btree open scan has been called prior to positioning the scan on the first row (ie. no next() call has been made yet).
ERROR XSCB6: A method on a btree open scan has been called prior to positioning the scan on the first row (ie. no next() call has been made yet).
at COM.jbms._17._790.scanNotPositioned(Unknown Source)
at COM.jbms._17._1134.reposition(Unknown Source)
at COM.jbms._17._1134.delete(Unknown Source)
at COM.jbms._5._966._3252(Unknown Source)
at COM.jbms._5._966.delete(Unknown Source)
at COM.jbms._5._988.delete(Unknown Source)
at COM.jbms._5._826.deleteRow(Unknown Source)
at COM.jbms._5._1033._3354(Unknown Source)
at COM.jbms._5._1033.open(Unknown Source)
at COM.jbms._57._484.executeMinion(Unknown Source)
at COM.jbms._57._484.execute(Unknown Source)
at COM.jbms._6._404.executeStatement(Unknown Source)
at COM.jbms._6._132.execute(Unknown Source)
at COM.jbms._6._132.executeUpdate(Unknown Source)
at com.wm.app.tn.db.BDMultiDocOperations.deleteDocuments(BDMultiDocOperations.java:144)
at com.wm.app.tn.db.BDMultiDocOperations.deleteDocuments(BDMultiDocOperations.java:82)
at com.wm.app.tn.db.BizDocStore.deleteDocuments(BizDocStore.java:63)
at wm.tn.archive.archive(archive.java:88)
at java.lang.reflect.Method.invoke(Native Method)
at com.wm.app.b2b.server.JavaService.baseInvoke(JavaService.java:281)
at com.wm.app.b2b.server.ServiceManager.invoke(ServiceManager.java:688)
at com.wm.app.b2b.server.comm.DefaultServerRequestHandler.handleMessage(DefaultServerRequestHandler.java:64)
at com.wm.app.b2b.server.HTTPMessageHandler.process(HTTPMessageHandler.java:166)
at com.wm.app.b2b.server.HTTPDispatch.run(HTTPDispatch.java:457)
at com.wm.util.pool.PooledThread.run(C:/NT/Perforce/basis/4.1.0-terra/module/core/source/com/wm/util/pool/PooledThread.java:103)
at java.lang.Thread.run(Thread.java:484)

Who can tell me how to resolve it ?