org.jivesoftware.openfire.handler.IQBind Handler - Error during resource binding. Session not found in

Hello,

Few days back i got following error on my linux xmpp server “org.jivesoftware.openfire.handler.IQBind Handler - Error during resource binding. Session not found in”,

and we observed that connections suddenly drop . what could be the reason behind it. ?

Thanks

Pramod