I have a file user.ldif for OpenLDAP containing:
dn: uid=olivia,ou=people,dc=hive,dc=lan
objectClass: inetOrgPerson
objectClass: posixAccount
objectClass: shadowAccount
uid: NAME_1
cn: NAME_1
sn: Cegal
loginShell: /bin/bash
uidNumber: 10000
gidNumber: 10000
homeDirectory: /home/NAME_1
shadowMax: 60
shadowMin: 1
shadowWarning: 7
shadowInactive: 7
shadowLastChange: 0

dn: cn=olivia,ou=groups,dc=vigilo,dc=no
objectClass: posixGroup
cn: NAME_1
gidNumber: 10000
memberUid: NAME_1

When running: sudo ldapadd -Y EXTERNAL -H ldapi:/// -f user.ldif

I get this error:

SASL/EXTERNAL authentication started
SASL username: gidNumber=0+uidNumber=0,cn=peercred,cn=external,cn=auth
SASL SSF: 0
adding new entry "uid=olivia,ou=people,dc=hive,dc=lan"
ldap_add: Server is unwilling to perform (53)
        additional info: no global superior knowledge

Can you correct the error and give me a working LDIF file?