I'm not at work so I don't have access to that unRAID instance, but currently I'm getting a CloudFlare 502 or NPM bad gateway.
NPM settings:
http, 192.168.1.21 (unraid IP) port 5000
Websocket support enabled, Block Common Exploits enabled, and everything on the SSL tab enabled.
I should've included all this in my response initially but I was frustrated from toying with it for a long while. When I get back to work on Monday I will updated with any further relevant logs and information.
Edit:
I appreciate your willingness to help. When I got to work today, it just worked fine. I didn't change anything and it didn't work on Friday. No idea. Thank you though, very much appreciated for your time.