Product Brandss

Firstly – I love the plugin!! Thank you.

PROBLEM 1:
When I installed the plugin, I see this in the side menu:
Products >> Product Brands

But after adding some brands, it changes to this:
Products >> Product Brandss (double ss)

This also appears in the breadcrumbs on the live site:
Home / Product Brandss / Audi

How can I stop it showing double ss?

PROBLEM 2:
When I view a brand archive page, I lose a side menu. I’m using Divi theme if that’s any help. Can’t find a way to get it working – have looked everywhere.