Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/vGEla1e/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-b5b1386a-664a-45db-8171-66ad4055324e",
      "cw-893ebffc-25ec-4928-a8b1-1fb46fe6ccca"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-6ead28e9-9e6e-4b31-aeac-b63be322933d",
    "manifestId": "https://dam.iuav.it/iuav/containers/vGEla1e/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-893ebffc-25ec-4928-a8b1-1fb46fe6ccca"
  }
}