Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/wAkkWDA/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-d64a1e8b-52cb-458e-9e0f-4dd17a515388",
      "cw-75114e1d-b363-426c-9128-8f7d31b864ab"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-8f3cee11-3604-4336-8ff1-bbb5fea24aa3",
    "manifestId": "https://dam.iuav.it/iuav/containers/wAkkWDA/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-75114e1d-b363-426c-9128-8f7d31b864ab"
  }
}