Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/Zq0m86e/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-6b6fa855-fff2-4ae6-8da5-f3df90ba7973",
      "cw-caa07240-4497-4ff8-9431-91baa864f128"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-5d6b4df8-d36b-46d4-a0a0-572e1254e9fa",
    "manifestId": "https://dam.iuav.it/iuav/containers/Zq0m86e/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-caa07240-4497-4ff8-9431-91baa864f128"
  }
}