Ironically, this add-on creates 404 issues. The template does not render properly on my site, even using the default XenForo style. For example, instead of the proper image URL myforum.com/styles/BR404E/404-1.png, it will try to append the broken URL. The result shows up in the logs: /threads/threadtitle.42600/styles/BR404E/404-1.png