Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/eg8m93Z/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-98a720a5-03f6-4e08-be5e-22e1f15e7df5",
      "cw-17587e01-e938-41bd-aa88-2a3bf305431d"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-92f24b0a-2e91-4e5e-ba93-ad14e1b4279c",
    "manifestId": "https://dam.iuav.it/iuav/containers/eg8m93Z/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-17587e01-e938-41bd-aa88-2a3bf305431d"
  }
}