Support

Mandatory information about my setup:

Have I read the related troubleshooter articles above before posting (which pages?)? Yes
Have I searched the tickets before posting? Yeso
Have I read the documentation before posting (which pages?)? Yes
Joomla! version: (1.5)
PHP version: (PHP 5.2.10 (cli) (built: Nov 13 2009 11:24:03)
MySQL version: (mysql Ver 14.12 Distrib 5.0.45, for redhat-linux-gnu (i686) using readline 5.0
)
Host: (redhat-linux-gnu)
Akeeba Backup version: ( 3.4.3)

EXTREMELY IMPORTANT: Please attach a ZIP file containing your Akeeba Backup log file in order for us to help you with any backup or restoration issue. If the file is over 2Mb, please upload it on your server and post a link to it.

Description of my issue:

Unsetting time limit restrictions.

Site paths determined by this script:
JPATH_BASE : /var/www/html/XXX/administrator
JPATH_COMPONENT_ADMINISTRATOR : /var/www/html/XXX/administrator/components/com_akeeba

PHP Warning: array_key_exists(): The second argument should be either an array or an object in /var/www/html/XXX/administrator/components/com_akeeba/akeeba/utils/comconfig.php on line 63
ERROR:
This script could not detect your live site's URL. Please visit Akeeba
Backup's Control Panel page at least once before running this script, so
that this information can be stored for use by this script.
PHP Warning: array_key_exists(): The second argument should be either an array or an object in /var/www/html/XXX/administrator/components/com_akeeba/akeeba/utils/comconfig.php on line 63
PHP Warning: array_key_exists(): The second argument should be either an array or an object in /var/www/html/XXX/administrator/components/com_akeeba/akeeba/utils/comconfig.php on line 63
ERROR:
Your Akeeba Backup installation's front-end backup feature is currently
disabled. Please log in to your site's back-end as a Super Administra-
tor, go to Akeeba Backup's Control Panel, click on the Parameters icon
in the top right corner and enable the front-end backup feature. Do not
forget to also set a Secret Word!


Regarding above issue, I 've read
this topic
But , That solution does not work in my case. The values of SiteUrl , frontend_enable and frontend_secret_word are already in params of component table.
As I trace on it , I've figured out that parse_ini_file_php function does not returning values of siteurl,frontend_enable and frontend_secret_word which altbackup.php needed to process.
That 's why PHP Warning says "The second argument should be either an array or an object".
if I set thoses three values as default hard-coded value in coding, It will work and proceed to backup . but It can not be configurage no matter how you change in component parameter.
Can you advise me how to get it working fine?

I just downloaded latest version two days ago.It could not be old version issue.
And I tried the way you advise .But It is not working .keep giving me same error.
Alternatively , I tried to set up the native cron script. It does not work as well.here the error as same as altbackup script .


Akeeba Backup CLI 3.4.3 (2012-03-21)
Copyright (C) 2010-2011 Nicholas K. Dionysopoulos
-------------------------------------------------------------------------------
Akeeba Backup is Free Software, distributed under the terms of the GNU General
Public License version 3 or, at your option, any later version.
This program comes with ABSOLUTELY NO WARRANTY as per sections 15 & 16 of the
license. See http://www.gnu.org/licenses/gpl-3.0.html for details.
-------------------------------------------------------------------------------

Starting a new backup with the following parameters:
Profile ID 1
Description "Command-line backup"

Current memory usage: 130.22 Kb

Unsetting time limit restrictions.

Site paths determined by this script:
JPATH_BASE : /var/www/html/XXX/administrator
JPATH_COMPONENT_ADMINISTRATOR : /var/www/html/XXX/administrator/components/com_akeeba

PHP Warning: array_key_exists(): The second argument should be either an array or an object in /var/www/html/XXX/administrator/components/com_akeeba/akeeba/utils/comconfig.php on line 63
PHP Notice: Undefined index: operand in /var/www/html/XXX/administrator/components/com_akeeba/akeeba/platform/abstract.php on line 322
PHP Notice: Undefined index: operand in /var/www/html/XXX/administrator/components/com_akeeba/akeeba/platform/abstract.php on line 324
PHP Warning: array_key_exists(): The second argument should be either an array or an object in /var/www/html/XXX/administrator/components/com_akeeba/akeeba/utils/comconfig.php on line 63
Last Tick : 2012-03-27 10:52:39 GMT+0800 (SGT)
Domain : init
Step :
Substep :
Memory used : 1.82 Mb
Warnings : no warnings issued (good)

yes, I 've followed your instruction. I had reinstalled the component without uninstalling on top of Professional like you said.

yes,it is giving me the same error message as above I've posted.