GoldenGate

can anyone help me to solve the issue..
------------------------------
Operation failed at seqno 0 rba 3388
Discarding record on action DISCARD on error 14400
Problem replicating TABS.DBM_OPER_TRACK to DWTABS.DBM_OPER_TRACK
Error (14400) occurred with insert record (target format)...
*
FILE_ID = 13410926
OPER_ID = CHKDUP
START_TIME = 2010-10-09 13:08:56
END_TIME = NULL
PROCESS_ROWS = NULL
FLEX_FLD1 = NULL
FLEX_FLD2 = NULL
FLEX_FLD3 = NULL
FLEX_FLD4 = NULL
FLEX_FLD5 = NULL
--------------------------------------------------


thanks