Hi Gurus,
I have the following error all over the alert log. I know this happens when there is duplicate entries but really don't know how to fix this with the UPDATE.

Any help will be appreciated.

ORA-12012: error on auto execute of job 21
ORA-00001: unique constraint (PERFSTAT.STATS$UNDOSTAT_PK) violated
ORA-06512: at "PERFSTAT.STATSPACK", line 2228
ORA-06512: at "PERFSTAT.STATSPACK", line 91
ORA-06512: at line 1