On my droplet I use git to pull a new theme, and it uses SASS and Compass and Grunt to compile the code. So I needed to update nodejs for it to work. and after updating my node and rebooting the server I get a 502 Bad Gateway when I visit my site. when running (sudo or not) $ service ghost start It gives me the feedback that Ghost is started really quickly (too quickly) and if afterwards I check with $ service ghost status it says it is not running. nginx does the same.