Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/xZjX8yA/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-a0614eb1-edbb-4cbc-b223-b8663800a925",
      "cw-dec07c4e-15c5-4f03-926f-8ec55d6da619"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-61c1576c-ced8-44cf-ab00-f8e822128de5",
    "manifestId": "https://dam.iuav.it/iuav/containers/xZjX8yA/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-dec07c4e-15c5-4f03-926f-8ec55d6da619"
  }
}