(ITS#5066) ldap error :server down

[jalali_azam@yahoo.com]

Full_Name: Azam Jalali
Version: 2.2.29
OS: windows
URL: ftp://ftp.openldap.org/incoming/
Submission from: (NULL) (213.207.237.38)


I installed openldap 2.2.9  and set sldap.conf as following:
///////////////////////////////////////////////////////////////////////////
ucdata-path	./ucdata

include    ./schema/core.schema
include    ./schema/cosine.schema
include    ./schema/inetorgperson.schema
include    ./schema/nis.schema
include    ./schema/dyngroup.schema



# Define global ACLs to disable default read access.

# Do not enable referrals until AFTER you have a working directory
# service AND an understanding of referrals.
#referral	ldap:/root.openldap.org

pidfile		./run/slapd.pid
argsfile	./run/slapd.args

# Load dynamic backend modules:
# modulepath	./libexec/openldap
# moduleload	back_bdb.la
# moduleload	back_ldap.la
# moduleload	back_ldbm.la
# moduleload	back_passwd.la
# moduleload	back_shell.la

# Sample security restrictions
#	Require integrity protection (prevent hijacking)
#	Require 112-bit (3DES or better) encryption for updates
#	Require 63-bit encryption for simple bind
# security ssf=1 update_ssf=112 simple_bind=64

# Sample access control policy:
#	Root DSE: allow anyone to read it
#	Subschema (sub)entry DSE: allow anyone to read it
#	Other DSEs:
#		Allow self write access
#		Allow authenticated users read access
#		Allow anonymous users to authenticate
#	Directives needed to implement policy:
# access to dn.base="" by * read
# access to dn.base="cn=Subschema" by * read
# access to *
#	by self write
#	by users read
#	by anonymous auth
#
# if no access controls are present, the default policy
# allows anyone and everyone to read anything but restricts
# updates to rootdn.  (e.g., "access to * by * read")
#
# rootdn can always read and write EVERYTHING!


#######################################################################
# BDB database definitions
#######################################################################

database	bdb
suffix		"dc=my-domain,dc=com"
rootdn		"cn=Manager,dc=my-domain,dc=com"
# Cleartext passwords, especially for the rootdn, should
# be avoid.  See slappasswd(8) and slapd.conf(5) for details.
# Use of strong authentication encouraged.
rootpw		secret
# The database directory MUST exist prior to running slapd AND 
# should only be accessible by the slapd and slap tools.
# Mode 700 recommended.
directory	./data
# Indices to maintain
index	objectClass	eq

access to attr=userpassword
   by anonymous auth
   by self write
   by dn="cn=Manager,dc=my-domain,dc=com" write
   by * none

access to *
    by dn="cn=Manager,dc=my-domain,dc=com" write
    by users write
    by self write
    by * read
    by * write

///////////////////////////////////////////////////////////////////////////
After running some query on this openldap i got ldap error:server down.
This event occurs every time i reinstalled it and ran some query on it? 
How i fix this error?
Thanks in advance 
Azam Jalali