I was wondering the same thing! I have a message on my page now that says “Your theme (Sinatra) contains outdated copies of some WooCommerce template files.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.”
When I go to their page it just says “Something is happening!” but there’s no way to contact them about taking care of this issue.