Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/9ZN5aae/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-67641406-b884-4639-bbdc-c0a29b7938d5",
      "cw-96dc27b1-24ec-4f5b-bdac-77e549897c79"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-23900592-d92f-4115-a779-a783e467dc6f",
    "manifestId": "https://dam.iuav.it/iuav/containers/9ZN5aae/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-96dc27b1-24ec-4f5b-bdac-77e549897c79"
  }
}