Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/Zq0XBLe/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-91310cb0-03e8-4106-83b5-c8dc618fc979",
      "cw-f0a6e9a8-4997-4fea-aacf-0c71566d3c08"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-cfe5e9d2-cb88-40ab-9487-1ffdf4fa451d",
    "manifestId": "https://dam.iuav.it/iuav/containers/Zq0XBLe/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-f0a6e9a8-4997-4fea-aacf-0c71566d3c08"
  }
}