Google crawling Weltpixel pages with /wpproductlabels/...

Looking in Google Search Console, I've recently noticed that Google is crawling hundreds of pages within our Weltpixel Pearl theme website with /wpproductlabels/...

You can see the issue by appending one such example onto the Pearl demo website:
https://pearl.weltpixel.com/wpproductlabels/product/labels/product_id/3344/

I've already disallowed these pages in my robots.txt but is there anything else that I should be doing?