Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/vDW3OdZ/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-6f366c4b-2c99-46a6-8a6a-83d6f35901fd",
      "cw-f9a5d3ae-293f-4398-9037-04bb4d31668e"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-153bc0fc-502b-47b9-a649-4a1a2e9554f4",
    "manifestId": "https://dam.iuav.it/iuav/containers/vDW3OdZ/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-f9a5d3ae-293f-4398-9037-04bb4d31668e"
  }
}