Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/Awq14WZ/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-fadf941c-9188-4c80-8c42-6b9cb8bceed9",
      "cw-c08532d6-7916-4cfd-a939-8702993ead70"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-6eade4e9-e77a-4ee4-a2a2-5e77925914af",
    "manifestId": "https://dam.iuav.it/iuav/containers/Awq14WZ/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-c08532d6-7916-4cfd-a939-8702993ead70"
  }
}