Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/AKKrO2A/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-122b1302-96a1-4d3f-8774-27ee1c199b32",
      "cw-871ad82b-11c8-44ea-88c0-04b74f17dcac"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-b948c5e6-d150-484e-8979-e640b2aabaee",
    "manifestId": "https://dam.iuav.it/iuav/containers/AKKrO2A/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-871ad82b-11c8-44ea-88c0-04b74f17dcac"
  }
}