Delivery erroring out in ITS

Hi,

Particual delivery is erroring out which executing Inerface Trip Stop for it. Below is the error message.

" Entering WSH_UTIL_CORE.ADD_MESSAGE (WSHUTCOB.pls 120.21.12010000.6) (05/30/2012 05:55:42 AM)
                    P_MESSAGE_TYPE ==> U
                    P_MODULE_NAME ==>
                    msg_buffer ==> Error in Routine WSH_FC_INTERFACE.Calculate_Delivery_Level_Cost,  Oracle Error - -1476
ORA-01476: divisor is equal to zero
                  Exiting WSH_UTIL_CORE.ADD_MESSAGE (05/30/2012 05:55:42 AM,  0 seconds)
                Exiting WSH_UTIL_CORE.DEFAULT_HANDLER (05/30/2012 05:55:42 AM,  0 seconds)
                Unexpected error has occured. Oracle error message is ORA-01476: divisor is equal to zero
              Exiting WSH_FC_INTERFACE_PKG.CALCULATE_DELIVERY_LEVEL_COST - EXCEPTION:OTHERS (05/30/2012 05:55:42 AM,  0 seconds)