Markup errors

Hi guys

this plugin seems very easy to use – essential as I’m really not too sure about all this schema stuff 🙂

I’ve activated the plugin and gone through the basic setup.

I’m getting some errors and warnings in Google’s Structured Data Testing tool. See: https://prettystars.co.uk/wp-content/uploads/2018/08/Screen-Shot-2018-08-09-at-18.09.42.png

All the products in my Woocommerce store throw up the same errors.

If anyone can suggest how to fix this, I’d be grateful!

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