Help .. rebuild app failed

Installation
3

I have disabled all but the basics:

      - git clone https://github.com/discourse/docker_manager.git
        # - git clone https://github.com/davidtaylorhq/discourse-whos-online.git
      - git clone https://github.com/discourse/discourse-spoiler-alert.git
      - git clone https://github.com/discourse/discourse-cakeday.git
        #- git clone https://github.com/angusmcleod/discourse-events.git
        #- git clone https://github.com/angusmcleod/discourse-locations.git
        # - git clone https://github.com/discourse/discourse-tooltips.git
        # - git clone https://github.com/discourse/discourse-push-notifications.git
        # - git clone https://github.com/communiteq/discourse-sitemap.git