Alright, so a recently I got a message from my Uptime Monitor that my Discourse Forum went down. I checked what was going on. It was offline. Though the server it was running on was online. I rebuilt the app to start it again.
Then I got this error:
It was installed a while ago following the install guide. It just randomly went offline.
I run a Minecraft Server on the Server too. Though, it does not use Redis and it uses port 19132 so that should not be a problem. It has always worked with it. What I have noticed though, that if I go to the domain to my forum I get a page from nginx saying it works.