Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/vRd2Qke/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-7bdd322c-b8aa-4201-93e5-c43d351f987a",
      "cw-a631b6d8-42fd-4b2d-8c16-cc44e36ae9cd"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-6dc14134-9056-4550-9f5a-ae8f632894d6",
    "manifestId": "https://dam.iuav.it/iuav/containers/vRd2Qke/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-a631b6d8-42fd-4b2d-8c16-cc44e36ae9cd"
  }
}