Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/AEPRznv/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-d3fd68e5-6645-44df-98e3-e8cb1319f6fa",
      "cw-a8168e76-8042-4853-8c67-339f2dbe73d4"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-ebfd7a65-b299-4834-a587-74d56b922df4",
    "manifestId": "https://dam.iuav.it/iuav/containers/AEPRznv/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-a8168e76-8042-4853-8c67-339f2dbe73d4"
  }
}