Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/e9kLnVv/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-c8e1fb3a-0192-4a4f-a005-8448f7522956",
      "cw-92a0061d-4224-4914-87c4-4108d2e30f0d"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-1b006400-9803-44e6-ab49-4787fc8c5974",
    "manifestId": "https://dam.iuav.it/iuav/containers/e9kLnVv/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-92a0061d-4224-4914-87c4-4108d2e30f0d"
  }
}