Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/AkrN1Lv/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-44048edd-e770-44b9-9f35-b152c1aaacf3",
      "cw-b041f63c-59bb-4a83-903c-9b27f3d4e2e9"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-ede0b8ca-09fa-4684-a666-38467fd15335",
    "manifestId": "https://dam.iuav.it/iuav/containers/AkrN1Lv/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-b041f63c-59bb-4a83-903c-9b27f3d4e2e9"
  }
}