and dis
Port 80 appears to already be in use.
This will show you what command is using port 80
./discourse-setup: line 283: lsof: command not found
If you are trying to run Discourse simultaneously with another web
server like Apache or nginx, you will need to bind to a different port
See Run other websites on the same machine as Discourse
If you are reconfiguring an already-configured Discourse, use
./launcher stop app
to stop Discourse before you reconfigure it and try again.