Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/dAMqgYA/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-7f81e44a-b8a2-498a-9b67-c15c9661c4be",
      "cw-93d0aae5-9889-4e59-83c7-3bcee9bd4983"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-256e2d49-d676-42fc-aaa1-5c559ba09f96",
    "manifestId": "https://dam.iuav.it/iuav/containers/dAMqgYA/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-93d0aae5-9889-4e59-83c7-3bcee9bd4983"
  }
}