Ok, I'm stumped...?

So through process of elimination, and reading on other sites, I’ve turned off Unbound and adjusted my Pi-hole settings differently. I have 2 servers…Home Asst (runs on a Mac Pro Trash Can) and a Linux machine running a series of Docker containers. Both tunnels are showing up on the Dashboard, but I can only connect to my Home Asst tunnel. This is progress. The Linux tunnel still shows up, but now gets a 502 Error. I’ll continue to diagnose