New trouble Using Tunnel to Port Forward bypassing CGNAT

I have had a tunnel setup for months now. The other day, the web server i am hitting from the internet started acting up.

I can hit the web server fine - not sure why my web server is not happy when accessed via the tunnel. I tested the webserver internally using a lan ip address and that works fine so my problem has to do with the tunnel.

I am not an expert in Cloudflare so i am looking for help in figuring out what happened with the tunnel - is there a reset or something?