Interface Trips Stop error out

 Hello All,

Interface trips stop program error out with the below error in log file.

The sales order delivery lines are in 'Shipped' status and next step is 'Run Interface'.I have checked the transaction open interface from inventory,there are no records stuck there.

InterfaceTripStop: processing all eligible stops for INV OM DSNO
Time spent in notification framework is (sec) 
Order Number :491957  Line Number :
Message :Set 1 has been closed. You cannot insert new lines into
a closed set.
Order Number :491957  Line Number :
Message :User-Defined Exception in Package OE_Split_Util Procedure Add to Fulfillment Set
no. of OE messages :2
Error msg: Set 1 has been closed. You cannot insert new lines into
a closed set.
Error msg: User-Defined Exception in Package OE_Split_Util Procedure Add to Fulf
illment Set
Failed to interface Batch  201431  to Order Management because API interface_hea
der_to_OM failed
Time spent in notification framework is (sec) 
Order