Error: Could not save config file with 3.1.8 installation

I am trying to install a full version 3.1.8 on my server.

I am getting the error:

Could not save config file
Installation script is unable to save file /home/bounddo/public_html/amember/config.inc.php.
For complete setup you may download new config files to your computer and upload it back to your server.

File config.inc.php. Upload it to your FTP:
/home/bounddo/public_html/amember/config.inc.php

When the file is saved to the server correctly I still get this error message.

Here is the content of the saved config.inc.php file on my server:

<?php
/**
* aMember Pro Config
*
* Author: Alex Scott
* Email: alex@cgi-central.net
* Web: http://www.cgi-central.net
* Details: Plugins config
* FileName $RCS0$
* Release: 3.1.8PRO ($Revision: 3602 $)
*
* Please direct bug reports,suggestions or feedback to the cgi-central forums.
* http://www.cgi-central.net/forum/
*
* aMember PRO is a commercial software. Any distribution is strictly prohibited.
*
*
*/
//error_reporting(E_ALL ^ (E_NOTICE | E_DEPRICATED));
error_reporting(E_ALL ^ (E_NOTICE | 8192)); //E_DEPRICATED since PHP 5.3.0 only

if (!defined('INCLUDED_AMEMBER_CONFIG')){
define('INCLUDED_AMEMBER_CONFIG', 1);

ini_set('session.bug_compat_warn', 0);
ini_set('session.bug_compat_42', 1);

@set_magic_quotes_runtime(0);
global $config, $plugins, $plugin_config;

$pc = array();
$pc['db'] = 'bounddo_amember';
$pc['user'] = 'bounddo_bounddo';
$pc['pass'] = '************';
$pc['host'] = 'localhost';
$pc['prefix'] = 'amember_';
$pc['charset'] = ''; // replace with 'utf8' for example

$config = array();
$config['db']['mysql'] = $pc;
$config['use_mysql_connect'] = 1;
$config['root_dir'] = dirname(__FILE__);

if (!strlen(dirname(__FILE__))) {
die("Script cannot detect path to the script automatically.<br />
Please edit 0 <i>amember/config.inc.php</i> and replace line<br />
<b>\$config['root_dir'] = dirname(__FILE__);</b><br />
to
<b>\$config['root_dir'] = '/home/bounddo/public_html/amember';</b><br />
Of course, <i>/home/user/public_html/amember<i> must be replaced to the <br />
actual UNIX 0system path (not URL!) to aMember folder.<br />
");
}
if (!defined('AMEMBER_ONLY_DB_CONFIG')){
require_once("$config[root_dir]/rconfig.inc.php");
}
}