Warning (2): array_merge(): Argument #2 is not an array [CORE/Core/Setting.php, line 50]

                        require $filePath,
                        require $userFilePath
                    );

$cacheId = 'xcms_settings_pana_aasaam_demo_ir_0_e402'
$cache = false
$commonFiles = array(
	(int) 0 => '/home/aasaam/xcms/core-common/app/Config/Settings/Comment.php',
	(int) 1 => '/home/aasaam/xcms/core-common/app/Config/Settings/Newsstudio.php',
	(int) 2 => '/home/aasaam/xcms/core-common/app/Config/Settings/User.php',
	(int) 3 => '/home/aasaam/xcms/core-common/app/Config/Settings/general.php',
	(int) 4 => '/home/aasaam/xcms/core-common/app/Config/Settings/validation.php'
)
$filePath = '/home/aasaam/xcms/core-common/app/Config/Settings/User.php'
$userFilePath = '/home/aasaam/xcms-projects/pana_aasaam_demo_ir/project/www-stable/app/files/settings/User.php'

array_merge - [internal], line ??
Core_Setting::load() - CORE/Core/Setting.php, line 50
require - APP/Config/bootstrap_xcms.php, line 109
include - APP/Config/bootstrap.php, line 110
Configure::bootstrap() - CORE/Cake/Core/Configure.php, line 92
include - CORE/Cake/bootstrap.php, line 175
[main] - APP/webroot/index.php, line 140