Attempting to use cloudflare tunnels as a reverse proxy for a self hosted website

I have a proxmox server sitting on its own VLAN within my network.
The server runs docker within an LXC container. I am able to access the website via [docker ip]:8080.
The cloudflare tunnel is setup as it’s own docker container and the website resources are setup as a docker compose stack.

Up until recently, cloudflare tunnel was showing healthy but accessing my domain would give bad webserver error. I don’t think I changed anything and the tunnel is now down. I made sure the containers are still running.