New Users get Error: "feature-not-implemted"

Hello!

I am running here an eJabberd 1.1.1 + MySQL.

But I got a very strange problem!

Everybody, who wants to register with this jabber server, gets "feature-not-implemted"

BUT the User has been created! Its in the MySQL DB and the User can login.

How can I remove this nasty error message?

You can test it: jabber.geode-blackbox.de

This are the Logs, when somebody register and get this error message:

=ERROR REPORT==== 30-Aug-2006::17:01:47 ===
E(<0.295.0>:ejabberd_hooks:187): {function_clause,
                                     [{jlib,string_to_jid1,[67,[]]},
                                      {mod_register,
                                          '-send_registration_notifications/1-fun-0-',
                                          3},
                                      {lists,foreach,2},
                                      {mod_register,try_register,3},
                                      {mod_register,process_iq,3},
                                      {mod_register,
                                          unauthenticated_iq_register,
                                          3},
                                      {ejabberd_hooks,run_fold1,4},
                                      {ejabberd_c2s,
                                          process_unauthenticated_stanza,
                                          2}]}
running hook: {c2s_unauthenticated_iq,["jabber.geode-blackbox.de",
                                       {iq,"4",
                                           set,
                                           "jabber:iq:register",
                                           [],
                                           {xmlelement,
                                               "query",
                                               [{"xmlns","jabber:iq:register"}],
                                               [{xmlelement,
                                                    "username",
                                                    [],
                                                    [{xmlcdata,
                                                         <<"test123555">>}]},
                                                {xmlelement,
                                                    "password",
                                                    [],
                                                    [{xmlcdata,<<"12345">>}]},
                                                {xmlelement,
                                                    "instructions",
                                                    [],
                                                    [{xmlcdata,
                                                         <<"Choose a username and password to register with this server">>}]}]}}]}

ejabberd.cfg

% BlackBox - Ejabberd

% User ConiKost als Admin
{acl, admin, {user, "conikost"}}.

% Lokale User
{acl, local, {user_regexp, ""}}.

% Nur Admins dürfen das Webinterface öffnen
{access, configure, [{allow, admin}]}.

% Jeder darf sich reggen
{access, register, [{allow, all}]}.

% Nach dem Reggen keine Wilkommensnachricht zeigen
% {welcome_message, none}.

% Bei neuer Registrierung automatisch eine E-Mail senden
% {registration_watchers, "ConiKost@geode-blackbox.de"}.

% Ankündigungen können nur von einem Admin geschickt werden
{access, announce, [{allow, admin}]}.

% Blockierter User dürfen den Server nicht nutzen
{access, c2s, [{deny, blocked},
               {allow, all}]}.

% Normales Sharper auf 1000B/s begrenzen
{shaper, normal, {maxrate, 1000}}.

% Schnelles Sharper auf 50000B/s begrenzen
{shaper, fast, {maxrate, 50000}}.

% Schnelles Sharper für Admins
{access, c2s_shaper, [{none, admin},
                      {normal, all}]}.

% Schnelles Sharper für alle
{access, s2s_shaper, [{fast, all}]}.

% Admins haben komplette Rechte für MUC
{access, muc_admin, [{allow, admin}]}.

% Alle User dürfen MUC nutzen
{access, muc, [{allow, all}]}.

% Zugriff für Lokale User
{access, local, [{allow, local}]}.

% Daten werden in MySQL gespeichert
{auth_method, odbc}.
{odbc_server, {mysql, "localhost", "Ejabberd", "Ejabberd", "MYPSW"}}.

% Host
{hosts, ["jabber.geode-blackbox.de"]}.
% Deutsche Sprache
{language, "de"}.

% Ports
{listen,
 [{5222, ejabberd_c2s,     [{access, c2s}, {shaper, c2s_shaper},
                            {max_stanza_size, 65536},
                            starttls_required, {certfile, "/etc/jabber/ssl/jabber.geode-blackbox.de.pem"}]},
  {5223, ejabberd_c2s,     [{access, c2s},
                            {max_stanza_size, 65536},
                            tls, {certfile, "/etc/jabber/ssl/jabber.geode-blackbox.de.pem"}]},
  {5269, ejabberd_s2s_in,  [{shaper, s2s_shaper},
                            {max_stanza_size, 131072}
                           ]},
  {5280, ejabberd_http,    [http_poll, web_admin]},
  {5342, ejabberd_service, [{access, all}, {hosts, ["aim.geode-blackbox.de"], [{password, "aim"}]}]},
  {5343, ejabberd_service, [{access, all}, {hosts, ["gg.geode-blackbox.de"], [{password, "gg"}]}]},
  {5344, ejabberd_service, [{access, all}, {hosts, ["icq.geode-blackbox.de"], [{password, "icq"}]}]},
  {5345, ejabberd_service, [{access, all}, {hosts, ["irc.geode-blackbox.de"], [{password, "irc"}]}]},
  {5346, ejabberd_service, [{access, all}, {hosts, ["msn.geode-blackbox.de"], [{password, "msn"}]}]},
  {5347, ejabberd_service, [{access, all}, {hosts, ["yim.geode-blackbox.de"], [{password, "yim"}]}]}
]}.

% SSL Support
{s2s_use_starttls, true}.
{s2s_certfile, "/etc/jabber/ssl/jabber.geode-blackbox.de.pem"}.

% Falls Port 8888 versagt, Port 5269 nutzen
{outgoing_s2s_port, 5269}.


% Module
{modules,
 [
  {mod_register,   [{access, register}]},
  {mod_roster_odbc,     []},
  {mod_privacy,    []},
  {mod_adhoc,      []},
  {mod_configure,  []}, % Depends on mod_adhoc
  {mod_configure2, []},
  {mod_disco,      []},
  {mod_stats,      []},
  {mod_vcard_odbc,      []},
  {mod_offline_odbc,    []},
  {mod_announce,   [{access, announce}]}, % Depends on mod_adhoc
  {mod_echo,       [{host, "echo.geode-blackbox.de"}]},
  {mod_private,    []},
% {mod_irc,        []},
  {mod_muc,        [{access, muc},
                    {access_create, muc},
                    {access_admin, muc_admin}]},
  {mod_time,       []},
  {mod_last_odbc,       []},
  {mod_version,    []}
 ]}.