Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/RABGDOe/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-bf2ee26f-cf2e-4c75-a5b3-077123196c2a",
      "cw-5a008d04-b67f-4222-892a-87724d53fcfd"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-ffa896c8-a364-447e-900d-21a1dd22af40",
    "manifestId": "https://dam.iuav.it/iuav/containers/RABGDOe/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-5a008d04-b67f-4222-892a-87724d53fcfd"
  }
}