Thanks for the URL. I have checked and confirmed that the stars appear blank there is a rating set on the product that is why they appear like this, once a product has the rating, it will appear on the “#d40000” color because you set this color for the review stars from yellow.
Further, there is no settings to hide the review until the product doesn’t have any review. Changes require customization and we cannot cover customization issues in our support policy. If you want paid Customization services submit a customization request to WPKraken team.
