@John G: We're adding a "data-rating" attribute to each badge so you should be able to hide a badge with no reviews by using an attribute selector in your CSS. Something like:
.spr-badge[data-rating="0.0"] { display: none; }
@Amar Chugg: If you're having issues with the app, I'd suggest contacting support as they're usually the best channel to get problems addressed. Are you still having this error occur?
@EcommGuy: Attaching reviews to customer accounts is something we've definitely considered, and although I can't really talk about when this might be implemented, it is on our roadmap. Currently, you cannot set a filter to be informed of reviews below a certain threshold although I like the suggestion. Thanks for your feedback!