blank post pages?

Hi,

I have changed my permalink structure to /%custom_taxonomy_name%/%postname%/ for a custom post type, and it seems to be working, my permalinks are updated. However, the post pages are now blank.

Any idea why?

https://wordpress.org/plugins/wp-permastructure/