Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/pZ8Dq2Z/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-682cc13f-4650-4ceb-823f-954751d376f9",
      "cw-04005ef6-6c7f-429f-a44b-885b0ad300c4"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-04edf282-8135-43f7-abee-ab0896d016cb",
    "manifestId": "https://dam.iuav.it/iuav/containers/pZ8Dq2Z/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-04005ef6-6c7f-429f-a44b-885b0ad300c4"
  }
}