Issue is not related to our theme because it does not display Date even with the default WooCommerce theme – Storefront https://prnt.sc/xaf1mr
So, try to update WooCommerce plugin to the latest version and disable all the third-party plugins. Check the order page after that. If you still have the issue then contact WooCommerce plugin support https://wordpress.org/support/plugin/woocommerce/
Our mission is to help Internet businesses and their customers interact in a way that mirrors real-world customer experience: personal, human, and fun.
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