Http Session Expired Error

Hi All,
Please give advice.

When the document was posted other Trading partner,
Sometimes we faced error as below.

2007/06/28 15:15:56.890 : com.wm.net.NetException: [ISC.0064.9314] Authorization Required: Invalid Session ID or Session Expired : com.wm.app.b2b.server.ServiceException: com.wm.net.NetException: [ISC.0064.9314] Authorization Required: Invalid Session ID or Session Expired
at pub.clientimpl.http(clientimpl.java:1170)
.
.
.

Is there any solution to solve it?

Check these on Advantage.

https://advantage.webmethods.com/advantage?targChanId=kb_home&oid=1611906909
https://advantage.webmethods.com/advantage?targChanId=kb_home&oid=1611640813

Thank you!!!