Susty child theme has broken

[billbennettnz]

Having trouble with my Susty child theme. It has been working OK for some time, but now breaks. This could be down to changes with WordPress.

My child theme has an empty .css file and ONLY this in Functions.php

`<?php
add_action( 'wp_enqueue_scripts', 'enqueue_child_theme_styles', PHP_INT_MAX);

function enqueue_child_theme_styles() {
wp_enqueue_style( 'parent-style', get_template_directory_uri().'/style.css' );
}
?>`

Any idea what is wrong?