No longer populating “review”, or “aggregateRating”

Hi, amazing plugin thank you for it! I’m having a little issue, I had everything setup and working for the Schema reviews for months now but as of late Rich Results Test is saying:
Either “hasVariant.offers”, “review”, or “aggregateRating” should be specified

And no schema reviews are being listed/pulled in the output.

This is what I had initially setup (I followed instructions from another support thread you replied to):

1. Enable product reviews in the WooCommerce settings.
2. Enable the Schema & Structured Data for WP & AMP integration on the “Site Reviews > Settings > Schema” page
3. Enable the WooCommerce integration on the “Site Reviews > Settings > Integrations” page
4. Use the provided “Import Product Reviews” tool to import any existing WooCommerce reviews into Site Reviews.
5. Ensure that the shortcode in the “Reviews Shortcode” setting (on the “Site Reviews > Settings > Integrations > WooCommerce” page) includes the schema=”true” option

I have the latest Site Review, WooCommerce & WordPress installed, any ideas why this isn’t working?

I would appreciate any help.

Best regards,
Jane