Could not add ‘LoginLogout’ link using BAW login logout plugin

Have you tried printing your custom link just by checking if user is logged in? you can do this using bult in wp functions

<?php
if ( is_user_logged_in() ) {
    echo '<a href="'.wp_logout_url( get_permalink() ).'" title="Logout" class="hunderline">Logout</a>';
} else {
    echo '<a href="'.wp_login_url( get_permalink() ).'" title="Login" class="hunderline">Login</a>';
}
?>