Error report - ORA-01870: the intervals or datetimes are not mutually comparable

Dear All,

During of a job creation I got  an error as follows:

BEGIN

    DBMS_SCHEDULER.CREATE_JOB (

            job_name => '"SYS"."PURGE_STD_AUDIT_TRAILS"',

            job_type => 'PLSQL_BLOCK',

            job_action => 'BEGIN

    DBMS_AUDIT_MGMT.SET_LAST_ARCHIVE_TIMESTAMP(

    audit_trail_type => DBMS_AUDIT_MGMT.AUDIT_TRAIL_OS,

    last_archive_time => sysdate - 3,

    rac_instance_number => 1 );

    DBMS_AUDIT_MGMT.SET_LAST_ARCHIVE_TIMESTAMP(

    audit_trail_type => DBMS_AUDIT_MGMT.AUDIT_TRAIL_OS,

    last_archive_time => sysdate - 3,

    rac_instance_number => 2 );

    DBMS_AUDIT_MGMT.CLEAN_AUDIT_TRAIL(

    audit_trail_type => DBMS_AUDIT_MGMT.AUDIT_TRAIL_OS,

    use_last_arch_timestamp => TRUE);