Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/v2Dr0Je/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-596ad23f-f5c6-4108-af5e-8c18456bbc40",
      "cw-4c7963c6-b57a-4b17-a19b-6cb75dbf3a6e"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-1fe96dc6-9be6-42ba-bf3b-78f82fa4c763",
    "manifestId": "https://dam.iuav.it/iuav/containers/v2Dr0Je/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-4c7963c6-b57a-4b17-a19b-6cb75dbf3a6e"
  }
}