Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/Lvxp33v/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-dafb71fa-5e48-43ea-a549-a69a8f11dd91",
      "cw-f3554cd8-019f-45c1-b301-f3f48e0c4db7"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-4789e1e0-f0ed-4b9f-9261-96a4e6c56cb9",
    "manifestId": "https://dam.iuav.it/iuav/containers/Lvxp33v/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-f3554cd8-019f-45c1-b301-f3f48e0c4db7"
  }
}