I running into same issue since a day ago. The only change I remember doing is upgrading from PHP 7.3 to 8.2
This only happens to me to a certain subset of users and only for a product that is priced at $0.
Looking at my logs, I have fatals in this plugin ‘DivisionByZeroError: Division by zero in /public_html/wp-content/plugins/woocommerce-multilevel-commision/classes/woocommerce-order.php:359’
@maazkhattak67 Does this ring a bell to you?