10 or 20
%1!: results state error - %2! already sent to client.
This problem may occur during a call to srv_negotiate() when a negotiated login directive is sent without sending srv_senddone() between calls to srv_negotiate().
Send srv_senddone(SRV_DONE_FINAL) or srv_senddone(SRV_DONE_MORE) between calls to srv_negotiate(). Also, check the Open Server application code to ensure that parameters are not returned after the final srv_senddone() call.
Symbolic constant: SRV_ESTATSTATE