Can't call method "attributes" on an undefined value at /usr/share/perl5/EBox/Ld

[JPB]

Another fool I was, Upgrading my ebox server from 8.04 LTS to 10.04 LTS resulted in a briken box beause the LDAP / Users ins messed up

If i Select Users and Groups -> Users I get this
Can't call method "attributes" on an undefined value at /usr/share/perl5/EBox/Ldap.pm line 254

HELP please!

[JPB]

More Info
aptitude install ebox-samba

Produce the error

Setting up ebox-usersandgroups (1.5-0ubuntu1) ...
 * Restarting eBox module: users                                                                                      [fail]
Can't call method "attributes" on an undefined value at /usr/share/perl5/EBox/Ldap.pm line 254.