NullReferencexception in InfoHandler

[ForNeVeR]

Object reference not set to an instance of an object.
   at SharpXMPP.XMPP.Stanza.Parse[T](XElement src)
   at SharpXMPP.XMPP.Client.Disco.InfoHandler.Handle(XmppConnection connection, XMPPIq element)
   at SharpXMPP.XMPP.Client.IqManager.<>c__DisplayClass3_0.<Handle>b__0(PayloadHandler h)
   at System.Collections.Generic.List`1.ForEach(Action`1 action)
   at SharpXMPP.XMPP.Client.IqManager.Handle(XmppConnection sender, XMPPIq element)
   at SharpXMPP.XmppConnection.OnIq(XMPPIq e)
   at SharpXMPP.XmppTcpConnection.SessionLoop()