Message Oracle ORA-38736 - Wrong thread number string in flashback log file header.

ERRORWrong thread number string in flashback log file header.
CAUSEThe thread number in the flashback database log file did not match the control file.
ACTIONIf you are doing a FLASHBACK DATABASE, then the flashback cannot be performed because of the corrupted log. A restore and an incomplete recovery must be performed instead.