Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/wAkzmGv/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-7dea3675-055c-493f-b883-4556ba65b8cf",
      "cw-b66c8985-7c8d-4ab2-bd8e-d8d420e1422c"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-80317362-e87c-4a03-bd27-01d4041cedf0",
    "manifestId": "https://dam.iuav.it/iuav/containers/wAkzmGv/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-b66c8985-7c8d-4ab2-bd8e-d8d420e1422c"
  }
}