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[quote author="www.sblog.in" date="1404365279"]what error exactly you are getting[/quote]
Here is the error:

Code:

Severity: Notice

Message: Undefined variable: subview

Filename: admin/_layout_modal.php

Line Number: 7
An Error Was Encountered

Unable to load the requested file: .php

I figure that the user class didn't work although I was extends it to Admin_Controller, I don't know why?