Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/pvlKODZ/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-bd1b111a-46cb-4bc4-aec0-b39ba48850e9",
      "cw-4ef0c933-3824-4372-a842-2ef2bf27f6e9"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-c7e06f10-2a9f-469d-aa21-0a3d67477845",
    "manifestId": "https://dam.iuav.it/iuav/containers/pvlKODZ/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-4ef0c933-3824-4372-a842-2ef2bf27f6e9"
  }
}