Oracle Solution for Error ora-27483

ORA-27483: "string.string" has an invalid END_DATE

What triggered the Error:

attempt was made to enable a job or window that has an invalid end_date. Either the end_date is before the start_date or the end_date is in the past.

What should we do to fix it:

ter the job or window so that the end date becomes valid (possibly null) and then reissue the command.