Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/dvLmDaA/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-b5baf852-8c90-4bfc-8ac5-aedb007fbe13",
      "cw-399afc63-0ae4-4be8-847f-b52c12f75031"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-ac0a2554-8f57-4a3f-84cd-53ad305463a1",
    "manifestId": "https://dam.iuav.it/iuav/containers/dvLmDaA/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-399afc63-0ae4-4be8-847f-b52c12f75031"
  }
}