Getting Error 502 Bad Gateway

Hey everyone,
I have a ProxMox Server with Nginx Proxy Manager on a VM and on a diffrent one my Plesk with the Websites. What am i doing wrong is it a Cloudflare Problem or is it my Problem? Thanks for any help and please keep it simple because i am new with all that.

This topic was automatically closed 15 days after the last reply. New replies are no longer allowed.