Bad GateWay Rancher-UI

I can’t get into my Rancher panel anymore… After following these tutorials a while ago(Self Hosting Your HomeLab & SSL, Traefik, and OAuth for Rancher) I found out yesterday that I get a Bad GateWay on my … Other domain names of services that I run do work and I can also access them.

As soon as I log in to my server and I do docker ps I see that the ‘Rancher-Agent’ keeps restarting itself. See screenshot of logs.

Anyone an idea how I can fix this?..