[Samba] Samba PDC with Ldap, problems after restart

[Ernest Aigner]

Hello, I have installed my Samba as a PDC with LDAP Backend, it worked 
fine, I was able to join the Domain with a Windows XP Client.But Today 
when i started the server, i can't join a domain anymore. I also can't 
add users to ldap anymore with smbldap-tools i always get this failure 
message:

3444 Use of uninitialized value in substitution (s///) at
/usr/share/perl5/smbldap_tools.pm line 140, <CONFIGFI LE> line 217.
3445 Use of uninitialized value in substitution (s///) at
/usr/share/perl5/smbldap_tools.pm line 140, <CONFIGFI LE> line 218.
3446 Use of uninitialized value in substitution (s///) at
/usr/share/perl5/smbldap_tools.pm line 140, <CONFIGFI LE> line 219.
3447 Use of uninitialized value in substitution (s///) at
/usr/share/perl5/smbldap_tools.pm line 140, <CONFIGFI LE> line 220.
3448 Use of uninitialized value in substitution (s///) at
/usr/share/perl5/smbldap_tools.pm line 140, <CONFIGFI LE> line 221.
3449 Use of uninitialized value in substitution (s///) at
/usr/share/perl5/smbldap_tools.pm line 140, <CONFIGFI LE> line 223.
3450 Use of uninitialized value in substitution (s///) at
/usr/share/perl5/smbldap_tools.pm line 140, <CONFIGFI LE> line 224.
3451 Use of uninitialized value in substitution (s///) at
/usr/share/perl5/smbldap_tools.pm line 140, <CONFIGFI LE> line 225.
3452 Use of uninitialized value in substitution (s///) at
/usr/share/perl5/smbldap_tools.pm line 140, <CONFIGFI LE> line 226.
3453 Use of uninitialized value in substitution (s///) at
/usr/share/perl5/smbldap_tools.pm line 140, <CONFIGFI LE> line 227.

Does anyone has an idea of the problem?

thx Ernest Aigner