Response: Node is not running! when deploy with ediliver

Hi all! I have some problem with edeliver deploy.
mix edeliver version production

EDELIVER FIREAPP WITH VERSION COMMAND
----- getting release versions from production servers
production node:
  user    : deploy
  host    : 206.189.102.57
  path    : /home/deploy/fireapp_release
  response: Node is not running!
VERSION DONE!

here is my prod.exs
config :fireapp, FireappWeb.Endpoint,
http: [port: 8080],
url: [host: “example.com”, port: 80],
cache_static_manifest: “priv/static/cache_manifest.json”,
server: true,
code_reloader: false

and .deliver/config
APP=“fireapp”

BUILD_HOST="206.189.102.57"
BUILD_USER="deploy"
BUILD_AT="/tmp/edeliver/fireapp/builds"

PRODUCTION_HOSTS="206.189.102.57"
PRODUCTION_USER="deploy"
DELIVER_TO="/home/deploy/fireapp_release"

# For *Phoenix* projects, symlink prod.secret.exs to our tmp source
pre_erlang_get_and_update_deps() {
  local _prod_secret_path="/home/deploy/prod.secret.exs"
  if [ "$TARGET_MIX_ENV" = "prod" ]; then
    __sync_remote "
      ln -sfn '$_prod_secret_path' '$BUILD_AT/config/prod.secret.exs'
    "
  fi
}

pre_erlang_clean_compile() {
  status "Running phoenix.digest" # log output prepended with "----->"
  __sync_remote " # runs the commands on the build host
    # [ -f ~/.profile ] && source ~/.profile # load profile (optional)
    source ~/.profile
    # echo \$PATH # check if rbenv is in the path
    set -e # fail if any command fails (recommended)
    cd '$BUILD_AT' # enter the build directory on the build host (required)
    # prepare something
    mkdir -p priv/static # required by the phoenix.digest task
    cd '$BUILD_AT/assets'
    npm install

    ./node_modules/brunch/bin/brunch build --production

    # run your custom task
    cd '$BUILD_AT'
    APP='$APP' MIX_ENV='$TARGET_MIX_ENV' $MIX_CMD phoenix.digest $SILENCE
  "
}