Tcp 127.0.0.1:2019: bind: address already in use

Oh, sorry Matt i forgot add Caddyfile
( when i restart machine first read config from Caddyfile then my app post to /loads json config. )

{
    # debug
    admin 0.0.0.0:2019
}

(redirect) {
        @http {
                protocol http
        }
        redir @http https://{hostport}{uri} 302
}

domain.tdll {
  reverse_proxy @notStatic unix//path/to/sockfile.sock
  log {
      level DEBUG
      output file /path/to/caddy.log
      format single_field common_log
  }
  @notStatic {
      not {
          path /static*
      }
  }
  root * /path/to/root
}