Enable to create blueprint using Atlassian connect Play

Hi Connect developers, i got this error when creating a blueprint in confluence space
Capture

and this is a part of my atlassian-connect.json:

{
  "key": "${addonKey}",
  "name": "${addonName}",
  "description": "ggggggg",
  "baseUrl": "${localBaseUrl}",
  "links": {
    "self": "{{localBaseUrl}}/atlassian-connect.json",
    "homepage": "{{localBaseUrl}}/atlassian-connect.json"
  },

  "vendor": {
    "name": "gggg",
    "url": "http://www.ggggg.fr/"
  },

  "version": "1.0",

  "authentication": {
    "type": "jwt"
  },

  "lifecycle": {
    "installed": "/installed"
  },
  "scopes": [
    "READ",
    "WRITE",
    "DELETE"
  ],
  "modules": {
"blueprints": [
      {
        "description": {
          "value":"ggggggg"
        },
        "template": {
          "url": "/assets/blueprint/ggg-blueprint.xml"
        },
        "createResult":"edit",
        "key": "ggg-cloud-blueprint",
        "name": {
          "value": "Glossary"
        },
        "icon": {
          "width": 48,
          "height": 48,
          "url": "/assets/images/ggg-48-create.png"
        }
      }
    ],

    "webhooks": [
      {
        "event": "page_updated",
        "url": "/pageUpdated"
      },
      {
        "event": "page_trashed",
        "url": "/pageTrashed"
      },
      {
        "event": "page_removed",
        "url": "/pageRemoved"
      },
      {
        "event": "page_restored",
        "url": "/pageRestored"
      },
      {
        "event": "space_removed",
        "url": "/spaceRemoved"
      }
    ]

And this is my blueprint.xml file:

<html>
    <head>
        <title>gggg Blueprint</title>
        <link rel="stylesheet" href="//cdnjs.cloudflare.com/ajax/libs/aui/5.2/css/aui.css" media="all" />

        <link rel="stylesheet" href="/public/css/main.css" />
        <link rel="stylesheet" href="//aui-cdn.atlassian.com/aui-adg/5.8.11/css/aui.css" media="all" />
    </head>
    <body>

        <ac:macro ac:name="ggg-home-macro">
            <ac:rich-text-body> </ac:rich-text-body>
        </ac:macro>

    </body>
</html>