SQL> select error_message,status from DBA_capture;
ERROR_MESSAGE
--------------------------------------------------------------------------------
STATUS
--------
ORA-01291: missing logfile
ORA-06512: at "SYS.DBMS_CAPTURE_ADM_INTERNAL", line 842
ORA-06512: at "SYS.DBMS_CAPTURE_PROCESS", line 397
ORA-06512: at line 1
ABORTED