Install openldap2.6.4 on rocky linux 9

hello

i need to modify type of crypting passwd ssha to ssha512

i have this error

ldap_modify: Object class violation (65)
additional info: attribute ‘olcPasswordHash’ not allowed

and i haven’t cn=module{0}.ldif in /etc/openldap/slapd.d/cn=config

if you can help me

thank you