UWSGI Works Within Network But Not Over Domain

Question

I have a RPi running NGINX and UWSGI serving a webpage and an API via UWSGI.

Web page works fine, both locally and from the web. API works locally, but not via web. My guess it's either the router or the NGINX configuration. I am using cloudflare for the DNS, and all appears fine there.

I can GET / POST locally using Postman, but not via the web address. I would greatly appreciate any ideas on where to look.

Output from uwsgi is:

*** Starting uWSGI 2.0.20 (32bit) on [Sat May 14 12:35:08 2022] ***
compiled with version: 8.3.0 on 06 October 2021 05:59:48
os: Linux-5.10.103-v7l+ #1529 SMP Tue Mar 8 12:24:00 GMT 2022
nodename: xxx
machine: armv7l
clock source: unix
pcre jit disabled
detected number of CPU cores: 4
current working directory: /var/www/xxx.xxx/public
detected binary path: /home/pi/.local/bin/uwsgi
*** WARNING: you are running uWSGI without its master process manager ***
your processes number limit is 12393
your memory page size is 4096 bytes
detected max file descriptor number: 1024
lock engine: pthread robust mutexes
thunder lock: disabled (you can enable it with --thunder-lock)
uWSGI http bound on :9090 fd 4
spawned uWSGI http 1 (pid: 3176)
uwsgi socket 0 bound to TCP address 127.0.0.1:34881 (port auto-assigned) fd 3
Python version: 3.7.3 (default, Jan 22 2021, 20:04:44)  [GCC 8.3.0]
*** Python threads support is disabled. You can enable it with --enable-threads ***
Python main interpreter initialized at 0xd5c950
your server socket listen backlog is limited to 100 connections
your mercy for graceful operations on workers is 60 seconds
mapped 64408 bytes (62 KB) for 1 cores
*** Operational MODE: single process ***
<<<<<<<<<<<<<<<< Loaded script >>>>>>>>>>>>>>>>
WSGI app 0 (mountpoint='') ready in 0 seconds on interpreter 0xd5c950 pid: 3175 (default app)
*** uWSGI is running in multiple interpreter mode ***
spawned uWSGI worker 1 (and the only) (pid: 3175, cores: 1)