Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/wAkloye/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-93448535-322c-416c-8007-6cc7a97c0bf8",
      "cw-aa58f7fc-3f78-41ad-a44f-1ec76db1bc3b"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-7c19fd5e-2684-4a7e-a048-03e02093f8c7",
    "manifestId": "https://dam.iuav.it/iuav/containers/wAkloye/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-aa58f7fc-3f78-41ad-a44f-1ec76db1bc3b"
  }
}