Hmm, I usually get this if I haven’t waited long enough after a reboot for the Kegbot Server services to start up, but I’m sure there are many possible causes.
A few commands you can run to check things:
Check the status of the nginx (web server) configuration:
sudo nginx -t
Check if nginx is running:
sudo service nginx status
Check if the Kegbot Server host is running:
curl localhost:8000
With this last command you should get the HTML output for the homepage of the Kegbot server.