Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/wArOoke/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-c0454994-c658-4c40-a6e5-1d743c177618",
      "cw-34fbeee3-e908-4e7e-b5d7-ac3e8638cbfa"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-e4c84731-52ec-4893-b46c-247f2940ec65",
    "manifestId": "https://dam.iuav.it/iuav/containers/wArOoke/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-34fbeee3-e908-4e7e-b5d7-ac3e8638cbfa"
  }
}