Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/Awqd42Z/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-5ad0f9e7-492a-4639-9a81-e3591523b8be",
      "cw-ea8d776d-4236-4eec-9f51-91b8d0b98bb4"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-532e11ee-d9d4-41f4-8a0c-2a67287871ea",
    "manifestId": "https://dam.iuav.it/iuav/containers/Awqd42Z/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-ea8d776d-4236-4eec-9f51-91b8d0b98bb4"
  }
}