Trading Issue in IB

Hi this is Atul Here, When I Fire 3 Order lot to INTREACTIVE BROKERS'S (TWS)
then it is trades to some order lot,and rejected some order by giving this response

"Order rejected - reason:It does not comply with IB's order handling
rules for derivatives that result in physical delivery.
Please refer to the IB web site for further details."

Any one can help me