Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/Jvazb5A/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-392638f2-735c-45b8-b98b-bd44ab65924d",
      "cw-a88df42c-fe97-4644-a4f0-be4aa0ed432b"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-47a5f166-662f-4e17-be80-eba0b2bc268a",
    "manifestId": "https://dam.iuav.it/iuav/containers/Jvazb5A/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-a88df42c-fe97-4644-a4f0-be4aa0ed432b"
  }
}