Change logout url in the7 theme

functions.php

//add this to your functions.php of main or child theme
add_filter( 'logout_url', 'custom_logout_url',10, 2 );
function custom_logout_url( $logout_url, $redirect  )
{
 	//Uncomment one of theese return statements
	//1.link to current page
	$args = array( 'redirect_to' => get_permalink() );
	//link to static logout page (set your URL here)
	//$args 'http://example/my-account/customer-logout/';

	if ( !empty($redirect) ) {
		$args['redirect_to'] = urlencode( $redirect );
	}

	$logout_url = add_query_arg($args, $logout_url);
	return $logout_url;
}