Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/9AJkOxe/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-117444c6-5491-419d-8a68-20fae29a956c",
      "cw-cf59ab03-9633-42f2-b6b7-cbee1c2360f3"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-8634a5cc-f292-4e3a-b645-73ab10ce1876",
    "manifestId": "https://dam.iuav.it/iuav/containers/9AJkOxe/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-cf59ab03-9633-42f2-b6b7-cbee1c2360f3"
  }
}