@PitaJ Thank you for your reply, and sorry for lack of information. http://35.198.197.213:4567/nodebb/ → success to show nodebb. http://35.198.197.213/nodebb/ → return 404 on parent site(my case is wordpress on nginx). http://35.198.197.213:4567/ → return misconfigured csrf error on nodebb. http://35.198.197.213:4567/nodebb → return /nodebbcategories not found on nodebb. I reloaded nginx. I setup and restart nodebb each time. nginx -t → syntax and test is successful. now I am trying below https://community.nodebb.org/topic/3324/nginx-error/18