We do not give a guaranty for full theme compatibility with all existing 3rd party plugins. Sometimes, not always, you need additionally customize the theme or plugin to make them work together.
Have you installed default WC pages? https://docs.woocommerce.com/document/woocommerce-pages/
The plugin works fine when a default WC theme (Storefront) is activated on the site? Please provide screenshots of how it works with the default theme.
