Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/Zq01V6e/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-975214f7-a604-4d93-9ff1-2114a5f59977",
      "cw-4d805969-203c-49fb-9349-c50d166a7676"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-910061e6-fc39-420f-96ba-9ae212235f54",
    "manifestId": "https://dam.iuav.it/iuav/containers/Zq01V6e/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-4d805969-203c-49fb-9349-c50d166a7676"
  }
}