I'm getting this warning message.
Your theme (BigCart Child) contains outdated copies of some WooCommerce template files. These files may need updating to ensure they are compatible with the current version of WooCommerce. Suggestions to fix this:
Update your theme to the latest version. If no update is available contact your theme author asking about compatibility with the current WooCommerce version.
If you copied over a template file to change something, then you will need to copy the new version of the template and apply your changes again.
Specifically, it is: bigcart-child/woocommerce/emails/customer-completed-order.php version 3.5.0 is out of date. The core version is 3.7.0, bigcart/woocommerce/single-product-reviews.php version 3.6.0 is out of date. The core version is 4.3.0,
Sometimes, but not always, an order fails to process, but when I try it again, it will go through. This is very problematic and I'm losing money because of this.
The updates and your advice is greatly appreciated!