Phpldapadmin connexion impossible

Bonjour à tous

je viens d'installer et configurer Openldap et j'ai aussi installer phpldapadmin mais je n'arrive pas à m'authentifier, j'ai pourtant attribuer un mon de passer lors de ma configuration de slapd.conf voici mon fichier.

# Allow LDAPv2 binds
allow bind_v2

# This is the main slapd configuration file. See slapd.conf(5) for more
# info on the configuration options.

#######################################################################
# Global Directives:

# Features to permit
#allow bind_v2

# Schema and objectClass definitions
include /etc/ldap/schema/core.schema
include /etc/ldap/schema/cosine.schema
include /etc/ldap/schema/nis.schema
include /etc/ldap/schema/inetorgperson.schema

# Where the pid file is put. The init.d script
# will not stop the server if you change this.
pidfile /var/run/slapd/slapd.pid

# List of arguments that were passed to the server
argsfile /var/run/slapd/slapd.args

# Read slapd.conf(5) for possible values
loglevel 0

# Where the dynamically loaded modules are stored
modulepath /usr/lib/ldap
moduleload back_bdb

# The maximum number of entries that is returned for a search operation
sizelimit 500

# The tool-threads parameter sets the actual amount of cpu's that is used
# for indexing.
tool-threads 1

#######################################################################
# Specific Backend Directives for bdb:
# Backend specific directives apply to this backend until another
# 'backend' directive occurs
backend bdb
checkpoint 512 30

#######################################################################
# Specific Backend Directives for 'other':
# Backend specific directives apply to this backend until another
# 'backend' directive occurs
#backend <other>

#######################################################################
# Specific Directives for database #1, of type bdb:
# Database specific directives apply to this databasse until another
# 'database' directive occurs
database bdb

# The base of your directory in database #1
suffix dc=ramzy,dc=mes

# rootdn directive for specifying a superuser on the database. This is needed
# for syncrepl.
rootdn cn=admin,dc=ramzy,dc=mes

# Where the database file are physically stored for database #1
directory "/var/lib/ldap"

# For the Debian package we use 2MB as default but be sure to update this
# value if you have plenty of RAM
dbconfig set_cachesize 0 2097152 0

# Sven Hartge reported that he had to set this value incredibly high
# to get slapd running at all. See https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=303057
# for more information.

# Number of objects that can be locked at the same time.
dbconfig set_lk_max_objects 1500
# Number of locks (both requested and granted)
dbconfig set_lk_max_locks 1500
# Number of lockers
dbconfig set_lk_max_lockers 1500

# Indexing options for database #1
index objectClass eq

# Save the time that the entry gets modified, for database #1
lastmod on

# Where to store the replica logs for database #1
# replogfile /var/lib/ldap/replog

# The userPassword by default can be changed
# by the entry owning it if they are authenticated.
# Others should not be able to see it, except the
# admin entry below
# These access lines apply to database #1 only
access to attrs=userPassword,shadowLastChange
by dn="cn=admin,dc=ramzy,dc=mes" write
by anonymous auth
by self write
by * none

# Ensure read access to the base for things like
# supportedSASLMechanisms. Without this you may
# have problems with SASL not knowing what
# mechanisms are available and the like.
# Note that this is covered by the 'access to *'
# ACL below too but if you change that as people
# are wont to do you'll still need this if you
# want SASL (and possible other things) to work
# happily.
access to dn.base="" by * read

# The admin dn has full write access, everyone else
# can read everything.
access to *
by dn="cn=admin,dc=ramzy,dc=mes" write
by * read

# For Netscape Roaming support, each user gets a roaming
# profile for which they have write access to
#access to dn=".*,ou=Roaming,o=morsnet"
# by dn="cn=admin,dc=ramzy,dc=mes" write
# by dnattr=owner write

#######################################################################
# Specific Directives for database #2, of type 'other' (can be bdb too):
# Database specific directives apply to this databasse until another
# 'database' directive occurs
#database <other>

# The base of your directory for database #2
suffix "dc=ramzy,dc=mes"
rootpw {crypt}68nF1IJHMCtK6

Mon domaine est ramzy.mes et il fonctionne bien je crois car j'ai de problème avec les autres services qui l'utilise, (phpmyadmin, joomla)

mais phpldapadmin affiche

"Anonymous Bind
Login DN cn=admin,dc=ramzy,dc=mes
Password *********
"

Quand je valide je reçois un message d'erreur
"Error
Could not bind to the LDAP server.

LDAP said: Undefined attribute type
Error number: 0x11 (LDAP_UNDEFINED_TYPE)
Description: The attribute type specified is invalid."

merci de vouloir m'aider.