Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/dvLP1Rv/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-d2415b69-0143-41c6-9e86-5e03f76ead13",
      "cw-d5abec8d-49bb-4b4b-a428-832726850152"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-d2b228b9-7cf8-4a53-a284-b8aabda19cc9",
    "manifestId": "https://dam.iuav.it/iuav/containers/dvLP1Rv/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-d5abec8d-49bb-4b4b-a428-832726850152"
  }
}