Notice: Uninitialized string offset: 0 in xxx\xxx\vendor\yiisoft\yii2\helpers\BaseArrayHelper.php on line 813

[wingsryder]

I am getting error after installing and adding entry in module for logging error.
on Windows 8 : Xampp : yii2 basic install ...web.php file.

Notice: Uninitialized string offset: 0 in C:\xampp\htdocs\zipdrive\vendor\yiisoft\yii2\helpers\BaseArrayHelper.php on line 813

Screenshot :

web.php file

 'modules' => [
         'audit' => 'bedezign\yii2\audit\Audit',
    ]

and

   'components' => [
      'errorHandler' => [
             'class' => '\bedezign\yii2\audit\components\web\ErrorHandler',
        ],
  ]

Only done adding these 2 entries.

Am I missing anything or its bug with code on windows OS ?

Also in component I have modules

'as access' => [
    'class' => 'mdm\admin\components\AccessControl',
    'allowActions' => [
        'sdmin/*', 
        'site/*',
         'gii/*',
        'user/*',
        'debug/*',
         'audit/*',
    ]
],