Plugin incompatible

Hello,
we use the WordPress plugin “Distritos de Portugal para WooCommerce” in order to set the shipping taxes according the region of the user.
However when you plugin is activated the regions disappear, we believes there’s and incompatibility, can you check it out ?

The plugin is free and available at https://pt.www.ads-software.com/plugins/portugal-states-distritos-for-woocommerce/

Thank you in advance,