错误404无法在Yii中处理请求？

I have 2 folders:

/var/www/img/2014/ (for images)

and

/var/www/img/2014/th (for thumbnails)

If I loading image from /var/www/img/2014/ for example: http://url.com/img/2014/1400057171thinkpad10-lenovo,X-Y-435382-3.png All normal loads.

But if I loading an image from /var/www/img/2014/th, displays the error:

Error 404 Unable to process request "img/2014/th/1400057171thinkpad10-lenovo, X-Y-435382-3.png".

Code /var/www/protected/config/main.php

'urlManager' => array(
    'urlFormat' => 'path',
    'rules' => array(
        '<controller:\w+>/<id:\d+>' => '<controller>/view',
        '<controller:\w+>/<action:\w+>/<id:\d+>' => '<controller>/<action>',
        '<controller:\w+>/<action:\w+>' => '<controller>/<action>',
    ),
    //not show index.php
    'showScriptName' => false,
),

Folder permissions 775. I think that this is related to the routing, not allowing me to the "th", how can I fix this error in Yii v1.? Thank you!

u did not give proper name for image

when ever u upload image that time u have to replace image name as timestamp.

main issue is image name is not proper.