Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/v680WMe/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-3edc16a0-37d2-4f90-8e85-04428e86ddb3",
      "cw-7871f6d9-e282-4bec-8d3b-bc90482829e9"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-c4ba319d-d77c-41e0-afe7-4ae4847cea2e",
    "manifestId": "https://dam.iuav.it/iuav/containers/v680WMe/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-7871f6d9-e282-4bec-8d3b-bc90482829e9"
  }
}