delete: Internal (implementation specific) error (80)

[jehan procaccia <jehan.procaccia@int-evry.fr>]

Hello,

when I want to delete an entry I get "delete: Internal (implementation 
specific) error (80)" . I run openldap-2.3.32 on a Fedora Core release 5

Example:
$ ldapdelete  mail=woaa@int-edu.eu,ou=AliasesSympa,dc=int-evry,dc=fr -D 
cn=admin,dc=int-evry,dc=fr -W -d 4 -H ldaps://ldapmaster.int-evry.fr -Z  -x
request done: ld 0x8874110 msgid 2
request done: ld 0x8874110 msgid 3
ldap_delete: Internal (implementation specific) error (80)
       additional info: DN index delete failed

ldap logs
Jan 14 17:11:53 ldapmaster slapd[25329]: conn=287 op=1 BIND 
dn="cn=admin,dc=int-evry,dc=fr" method=128
Jan 14 17:11:53 ldapmaster slapd[25329]: conn=287 op=1 BIND 
dn="cn=admin,dc=int-evry,dc=fr" mech=SIMPLE ssf=0
Jan 14 17:11:53 ldapmaster slapd[25329]: conn=287 op=1 RESULT tag=97 
err=0 text=
Jan 14 17:11:53 ldapmaster slapd[25329]: conn=287 op=2 DEL 
dn="mail=woaa@int-edu.eu,ou=AliasesSympa,dc=int-evry,dc=fr"
Jan 14 17:11:53 ldapmaster slapd[25329]: => bdb_dn2id_delete: parent 
(ou=aliasessympa,dc=int-evry,dc=fr) delete failed: -30989
Jan 14 17:11:53 ldapmaster slapd[25329]: conn=287 op=2 RESULT tag=107 
err=80 text=DN index delete failed
Jan 14 17:11:53 ldapmaster slapd[25329]: conn=287 op=3 UNBIND
Jan 14 17:11:53 ldapmaster slapd[25329]: conn=287 fd=45 closed ()

thanks .