Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/WvdMwmA/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-f29779c5-0bf5-4958-8a60-f31138de5325",
      "cw-592b2bef-2c3c-44d4-98ad-e50be9bf0c87"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-ee397ac1-5334-478c-a57d-5ef3392ec5a6",
    "manifestId": "https://dam.iuav.it/iuav/containers/WvdMwmA/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-592b2bef-2c3c-44d4-98ad-e50be9bf0c87"
  }
}