Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/Jva01EZ/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-7405057c-d62f-4d57-85fe-c1595830fd55",
      "cw-f01ab06e-07af-490b-a8bf-e12b957f581a"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-fdcca2ec-c3d8-4d4d-b0ed-e9a3e7229879",
    "manifestId": "https://dam.iuav.it/iuav/containers/Jva01EZ/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-f01ab06e-07af-490b-a8bf-e12b957f581a"
  }
}