Selling Land Parcels and Helper Scripts

I installed the NSL Money Server last Sunday night and the Money system is working well
However - I cannot sell Land
I wish at very least to be able to sell a parcel of land for 0$ to a specific person

My System is Ubuntu Server
I run Apache2 and have installed php-xmlrpc and php-curl with apt-get
My Version of php is 7

I installed the Helper scripts Below is the ls -l of the Dirs
root@ubuntuM:/home/web/html/currency# ls -l
total 36
drwxr-sr-x 2 80 80 4096 Jun 28 11:57 config
drwxr-sr-x 4 80 80 4096 Nov 30 2014 flotsam_XmlRpcGroup
drwxr-sr-x 3 80 80 4096 Jun 27 21:17 helper
drwxr-sr-x 6 80 80 4096 Nov 30 2014 images
drwxr-sr-x 2 80 80 4096 Jun 28 11:55 include
drwxr-sr-x 2 80 80 4096 Nov 30 2014 jbxl
drwxr-sr-x 6 80 80 4096 Nov 30 2014 opensim.helper
drwxr-sr-x 2 80 80 4096 Nov 30 2014 opensim.phplib
-rwxr-xr-x 1 80 80 287 Nov 30 2014 rm_symblink
root@ubuntuM:/home/web/html/currency#

root@ubuntuM:/home/web/html/currency/include# ls -l
total 0
lrwxrwxrwx 1 80 80 20 Nov 30 2014 config.php -> ../config/config.php
lrwxrwxrwx 1 80 80 18 Nov 30 2014 cron.php -> ../config/cron.php
lrwxrwxrwx 1 80 80 31 Nov 30 2014 env.mysql.php -> ../opensim.phplib/env.mysql.php
lrwxrwxrwx 1 80 80 27 Nov 30 2014 env_interface.php -> ../config/env_interface.php
lrwxrwxrwx 1 80 80 20 Nov 30 2014 index.html -> ../config/index.html
lrwxrwxrwx 1 80 80 22 Nov 30 2014 jbxl_tools.php -> ../jbxl/jbxl_tools.php
lrwxrwxrwx 1 80 80 32 Nov 30 2014 mysql.func.php -> ../opensim.phplib/mysql.func.php
lrwxrwxrwx 1 80 80 35 Nov 30 2014 opensim.mysql.php -> ../opensim.phplib/opensim.mysql.php
lrwxrwxrwx 1 80 80 22 Nov 30 2014 tools.func.php -> ../jbxl/tools.func.php
root@ubuntuM:/home/web/html/currency/include#

and my config.php ->

<?php
//
// Configration file for non Web Interface
//
//
//

// Please set this hepler script URL and directory
if (!defined('ENV_HELPER_URL')) define('ENV_HELPER_URL', 'http://thekaz.ddns.$
if (!defined('ENV_HELPER_PATH')) define('ENV_HELPER_PATH', '/home/web/html/curr$

///////////////////////////////////////////////////////////////////////////////$
// Valiables for OpenSim

// Please set MySQL DB access information
define('OPENSIM_DB_HOST', 'localhost');
define('OPENSIM_DB_NAME', 'opensim');
define('OPENSIM_DB_USER', 'opensimuser');
define('OPENSIM_DB_PASS', 'opensimpassword');
//
define('OPENSIM_DB_MYSQLI', true); // if you use MySQLi interface,$


// Money Server Access Key
// Please set same key with MoneyScriptAccessKey in MoneyServer.ini
define('CURRENCY_SCRIPT_KEY', '123456789');


// Group Module Access Keys
// Please set same keys with at [Groups] section in OpenSim.ini (case of Aurora$
define('XMLGROUP_RKEY', '1234'); // Read Key
define('XMLGROUP_WKEY', '1234'); // Write key

///////////////////////////////////////////////////////////////////////////////$
// You need not change the below usually.


I have checked the keys above and they are correct
In Robust.ini AND Robust.HG.ini I have sent the [GridInfoService] sections to show :
economy = http://thekaz.ddns.net/currency/helper/

I must be missing something here - When I try to buy land - I get an "Unable to Authenticate" or "Cannot Resolve Hostname" error in the Viewer
I have also gone through the the Other forum regarding this same error - but I done believe I have to edit php files?
Any help suggestions will be greatly appreciated

Thank you
Jony