not sure if this is a WooCommerce problem or theme-related.
In any case, the breadcrumbs are a bit weird (on your theme demo as well, so it is not just my problem).
On shop overview pages they are correct, like Home > Shop > Category
On product detail pages they are like Home > Shop > Products > Producttitle , and "Shop" and "Products" are both linked to the shop overview. Instead they should be like Home > Shop > Category > Producttitle with linking to the proper storefront and category page.