It says literally:

the function "bindtextdomain" is undefiend (doesn't exist).

It being called in the file / home / domain.com, / public_html / os / setup / setup.inc.php

on line 66.

Although I'm curious why there is a , in your domain name.

What should I do?

osTiket doesn't use bindtextdomain as far as I know - would you mind uploading your setup.inc.php file?

<?php

/*********************************************************************

setup.inc.php

Master include file for setup/install scripts.

Peter Rotich

Copyright (c) 2006-2012 osTicket

http://www.osticket.com(http://www.osticket.com)

Released under the GNU General Public License WITHOUT ANY WARRANTY.

See LICENSE.TXT for details.

vim: expandtab sw=4 ts=4 sts=4:

**********************************************************************/

#This version - changed on every release

define('THIS_VERSION', '1.7-RC4+');

#inits - error reporting.

$error_reporting = E_ALL & ~E_NOTICE;

if (defined('E_STRICT')) # 5.4.0

$error_reporting &= ~E_STRICT;

if (defined('E_DEPRECATED')) # 5.3.0

$error_reporting &= ~(E_DEPRECATED | E_USER_DEPRECATED);

error_reporting($error_reporting);

ini_set('magic_quotes_gpc', 0);

ini_set('session.use_trans_sid', 0);

ini_set('session.cache_limiter', 'nocache');

ini_set('display_errors',1); //We want the user to see errors during install process.

ini_set('display_startup_errors',1);

#Disable Globals if enabled

if(ini_get('register_globals')) {

ini_set('register_globals',0);

foreach($_REQUEST as $key=>$val)

if(isset($$key))

unset($$key);

#start session

session_start();

#clear global vars

$errors=array();

$msg='';

#define constants.

define('SETUPINC',true);

define('URL',rtrim('http'.(($_SERVER=='on')?'s':'').'://'.$_SERVER.dirname($_SERVER),'setup'));

#define paths

define('INC_DIR','./inc/'); //local include dir!

if(!defined('INCLUDE_DIR')):

define('ROOT_PATH','../');

define('ROOT_DIR','../');

define('INCLUDE_DIR',ROOT_DIR.'include/');

define('PEAR_DIR',INCLUDE_DIR.'pear/');

ini_set('include_path', './'.PATH_SEPARATOR.INC_DIR.PATH_SEPARATOR.INCLUDE_DIR.PATH_SEPARATOR.PEAR_DIR);

endif;

#Internationalization variables

putenv('LC_ALL=' . LANG);

setlocale(LC_ALL, LANG . '.UTF-8');

bindtextdomain('i18n', 'i18n');

bindtextdomain('i18n', '../i18n');

// Choose domain

textdomain("i18n");

#required files

require_once(INCLUDE_DIR.'class.setup.php');

require_once(INCLUDE_DIR.'class.validator.php');

require_once(INCLUDE_DIR.'class.passwd.php');

require_once(INCLUDE_DIR.'class.format.php');

require_once(INCLUDE_DIR.'class.misc.php');

require_once(INCLUDE_DIR.'mysql.php');

?>