Can not register new account!

For some reason all of a sudden i am unable to register a new account. This was working but for some reason is not any more, any ideas?

private function createOpenfireAccount():void
{
    Security.loadPolicyFile("http://" + ModelLocator.OPENFIRE_HOST +
":9090/crossdomain.xml");
              var openfire:XMPPSocketConnection = new
XMPPSocketConnection();
    openfire.server = ModelLocator.OPENFIRE_HOST;
    openfire.username = null;
    openfire.password = null;
    openfire.connect("standard");
                       openfire.addEventListener(XIFFErrorEvent.XIFF_ERROR, function
onError(e:XIFFErrorEvent):void {
                              trace("\n\nError Event\n");          trace(e.errorCode);
          trace(e.errorCondition);
          trace(e.errorMessage);
          trace(e.errorType);
          openfire.disconnect();
                            });
                 openfire.addEventListener(IncomingDataEvent.INCOMING_DATA, function
onIncomingData(e:IncomingDataEvent):void     {          trace("\nIcoming Data\n" + e.data);                         });
                 openfire.addEventListener(ConnectionSuccessEvent.CONNECT_SUCCESS,
function onConnect(e:ConnectionSuccessEvent):void {
                              trace("\nRegistering new user...\n" +
username + "\n" + password + "\n" + email);
                          var registrationFields = {};
          registrationFields.username = username;
          registrationFields.password = password;
          registrationFields.email = email;
          registrationFields.nick = username;
                             openfire.sendRegistrationFields(registrationFields,null);
    });
                       openfire.addEventListener(RegistrationSuccessEvent.REGISTRATION_SUCCESS,
function onReg(e:RegistrationSuccessEvent):void {
              trace("Success");
              Alert.show("Thanks for Signing up! You will recieve an
email with instructions on how to get started!", "Thank You");
              openfire.disconnect();
                        });

stream:featuresDIGEST-MD5PLAINANONYM OUSCRAM-MD5</mech
anism>zlib</stream:features><
iq to=“openfire_host/1b89a88” type=“error” id=“reg_attempt_1” from=“openfire_host”>tabithaeasy123

Just change your

openfire.server =ModelLocator.OPENFIRE_HOST ;

I think you put there localhost.Change the openfire Host name as displayed in environment settings in admin panel. This should work.