Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/dvL8y5v/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-ff91b7f1-c331-401a-879b-a1ac69e9ba11",
      "cw-02a5213f-4394-4c24-99fb-86ce0a6b3b01"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-fdc9e07c-0e7a-4c15-9104-ad7837899eac",
    "manifestId": "https://dam.iuav.it/iuav/containers/dvL8y5v/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-02a5213f-4394-4c24-99fb-86ce0a6b3b01"
  }
}