Reverse Proxy, 500 Internal Server Error Openresty

[Ccheese4]

Issue

Hi, I'm trying out this running as a docker container running on my Unraid server. I've gotten multiple applications accessible through a reverse proxy, but I'm struggling to get this one working for some reason. Wondering if there is some config step that I'm overlooking.

I use NginxProxyManager (NPM), and have a domain through Cloudflare. I've assigned a subdomain for this container. If I disable my NPM proxy host for this subdomain I get the generic NPM splash page, so I think I've got Cloudflare DNS set up correctly (identical to my other subdomains). I've got my proxy host set up the same as my other ones as well, but I'm getting a "500 Internal Server Error, openresty" when I try and navigate to my subdomain. I have also tested with a temporary duckdns subdomain to try and eliminate Cloudflare as the source of the error, and I get the same result.

NPM Setup
Scheme: https
Cache Assets: enabled
Block Common Exploits: enabled
SSL Cert: yes
Force SSL: enabled
HTTP/2 Support: enabled

I definitely feel like this is user error, rather than any issues with this container. Is there any insight into how to fix this issue? Maybe something could be added to the documentation if this is a common problem.

Tandoor Version

1.5.19

OS Version

Unraid 6.12.13

Setup

Unraid

Reverse Proxy

Nginx Proxy Manager (NPM)

Other

No response

Environment file

where can I find this?

Docker-Compose file

No response

Relevant logs

No response

[Ccheese4]

some additional information. If I look in the NginxProxyManager logs, I see an "invalid port in upstream" error. Googling hasn't yielded me any helpful results (or if it did, I missed it because I didn't understand it).