ref_cat and ref_tag don't show as taxonomies

Hi everyone

I’m using Bibliplug with my site but I want to list reference categories aside. Although the cateogories do show when we click over them they give us back a blank page. Do you know what’s happening?

http://www.museudememes.com.br/o-museu-de-memes/referencias-bibliograficas/

https://wordpress.org/plugins/enhanced-bibliplug/