‘offers’, ‘review’ or ‘aggregateRating’ should be specified

I received this error ‘offers’, ‘review’ or ‘aggregateRating’ should be specified on Google Webmaster after configuring the PWB Plugin and assigning brands to products. It seems PWB created a new URL for products /brand/ where product permalink is /product/ on WordPress. If I visit one of the products which have a brand assigned /brand/ URL e.g https://www.vapeowave.co.za/brand/sorbetto-ejuice-berry-litchious-tropical-sorbet-tornado-popsicle/ I can find the @type and sku and schema in the “View Source” of the page and it is correct and pointing to correct product URL /product/

Any ideas how I can get rid of the Google Webmaster errors, it occurs on all products with a brand assigned to it.

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