Shoper woo templates out of date

Good Day!

WooCommerce keeps popping up a message for me to update my theme (Shoper).

Your theme (Shoper – CHILD THEME) contains outdated copies of some WooCommerce template files.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:

1. Update your theme to the latest version. If no update is available contact your theme author asking about compatibility with the current WooCommerce version.
2. 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.

I emailed but did not hear back. Here are the templates in question:

Overrides:

shoper/woocommerce/content-widget-product.php,
shoper/woocommerce/loop/add-to-cart.php,
shoper/woocommerce/single-product/add-to-cart/external.php,
shoper/woocommerce/single-product/add-to-cart/grouped.php version 4.0.0 is out of date. The core version is 4.8.0,
shoper/woocommerce/single-product/add-to-cart/simple.php,
shoper/woocommerce/single-product/add-to-cart/variation-add-to-cart-button.php,
shoper/woocommerce/single-product/tabs/tabs.php

Can you verify that your theme is up to date with WooCommerce? What should I do about these messages? What’s going on with this file [shoper/woocommerce/single-product/add-to-cart/grouped.php version 4.0.0 is out of date. The core version is 4.8.0]?

Thanks for any help.

The page I need help with: [log in to see the link]