Missing Method in InquireController

You are seeing this error because the action nscustom.css is not defined in controller InquireController

If you want to customize this error message, create app/views/errors/missing_action.thtml.

Fatal: Confirm you have created the InquireController::nscustom.css() in file : app/controllers/inquire_controller.php

<?php
class InquireController extends AppController {
   function nscustom.css() {
   }
}
?>