Error seranking – Hreflang a no-canónica

//cambiar canonical

remove_action( 'wp_head', 'rel_canonical' );
add_filter( 'wpseo_canonical', '__return_false' );

function cambioCanonical(){
	global $wp;
	$canonical = home_url(add_query_arg(array(), $wp->request));
	echo "<link rel='canonical' href='$canonical' />\n";
}

add_filter( 'wp_head', 'cambioCanonical' );