You are right, I misunderstood your issue and thought about Apache instead of NGINX. Sorry for the confusion.
The bnsupport tool didn't get all the required files from your system. Can you please follow the instructions in the link below to download the latest bnsupport tool version and run it again using
Apart from that, did you modify anything in your NGINX configuration for WordPress? How did you configure the domain name for WordPress? Can you please run the command below?
sudo cat /opt/bitnami/apps/wordpress/conf/nginx-app.conf
I also see many owner and group values in your installation are different from the default values. Can you tell us what modifications did you do and what were you trying to achieve? Where you using any guide for it?