The error has been fixed by changing content of core function getRowUrl in app\code\core\Mage\Adminhtml\Block\Widget\Grid.php
The core function is :
public function getRowUrl($item)
{
$res = parent::getRowUrl($item);
return ($res ? $res : '#');
}
Replaced with :
public function getRowUrl($item)
{
return $this->getUrl('*/*/edit', array('id' => $item->getId()));
}
Even you are facing blank page error then do something as
write below code in index.php file and save it to display error
error_reporting(E_ALL);
ini_set("display_errors", 1);
Note: if curl, mcrypt is not enabled then enable it.
Enjoy !!!!!!!!!!!
