Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/dvDYz8A/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-b935b36c-0034-473a-be27-07a3a4745133",
      "cw-2c9e2e7f-20d9-4ebe-88f8-29d73685d40a"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-200461bc-4663-4587-a686-85001eccc5f2",
    "manifestId": "https://dam.iuav.it/iuav/containers/dvDYz8A/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-2c9e2e7f-20d9-4ebe-88f8-29d73685d40a"
  }
}