block spec page to logged in users

Hi, I’m trying to block specific pages to logged in users
615 is the specific page for login
455 is the specific page for register
Both page no useful anymore since the users logged in, right ?
see below code :

<?php //Block Specific Page to Users Logged In
add_action( 'template_redirect', 'block_spec_page' );
function block_spec_page() {
	if (!is_user_logged_in())
		return;
	else
	   (is_page(array(615, 455))) {
		wp_redirect( 'member-area' );
	   }
    return;
}
?>

the above code just result white/blank page a.k.a error.
what is the proper action hook ?
is my function correct ?
anyone can help me resolve this ?