ORA-15591
corrupt workload capture files
Cause
The captured workload contained one or more corrupt recording files.
Action
Check the alert log for lines containing DBMS_WORKLOAD_REPLAY.PROCESS_CAPTURE after capture processing. The files will be replayed up to the point of the corruption. You could also remove the corrupt files and run DBMS_WORKLOAD_REPLAY.PROCESS_CAPTURE again. In this case, no workload from the corrupt files is replayed.