Hello,
The original issue comes because of the fatal error (Fatal error: Uncaught Error: Call to a member function get_average_rating() on null in /srv/htdocs/wp-content/plugins/woocommerce/templates/loop/rating.php:28 ) but we can’t find out actions that call that fatal error to find the reason.
We gave you refund. Sorry for the inconvenience.
Regards