This was true for me, though the specific file that was missing was different to that listed above. I was missing wp-content/plugins/woocommerce/templates/order/order-details.php.
Check you actually have those files in your site structure, then just google the files and manually upload them and it may work.
eg, this worked for me:
https://github.com/woothemes/woocommerce/blob/master/templates/order/order-details.php
