Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/vRd2Qke/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-838d9a16-431e-4a6d-b2b3-55b7a4f8ddb0",
      "cw-7573e869-d00d-4945-9e0e-de2e69c20f14"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-58708051-6d97-4615-8886-5c01cb4dbcc7",
    "manifestId": "https://dam.iuav.it/iuav/containers/vRd2Qke/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-7573e869-d00d-4945-9e0e-de2e69c20f14"
  }
}