Missing Controller

Error: BTNA.shtmlController could not be found.

Error: Create the class BTNA.shtmlController below in file: app/controllers/b_t_n_a.shtml_controller.php

<?php
class BTNA.shtmlController extends AppController {

	var $name = 'BTNA.shtml';
}
?>

Notice: If you want to customize this error message, create app/views/errors/missing_controller.ctp