Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/9AJzLPA/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-0fd2109d-f411-43e5-a4b1-e51e1cb31398",
      "cw-0af9adf4-6935-4ca4-9cd3-48236d9bb1ba"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-f00e2aa6-e625-441a-b721-b88b25b66a04",
    "manifestId": "https://dam.iuav.it/iuav/containers/9AJzLPA/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-0af9adf4-6935-4ca4-9cd3-48236d9bb1ba"
  }
}