Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/vDW3qaZ/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-1a75df9f-c1e6-4d7e-a2c1-0a06281c5c66",
      "cw-e565dbc0-7ec4-4048-b2da-155b081096b3"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-1113f912-afa2-4f5a-a67a-66b4377453a7",
    "manifestId": "https://dam.iuav.it/iuav/containers/vDW3qaZ/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-e565dbc0-7ec4-4048-b2da-155b081096b3"
  }
}