Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/AMjq8De/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-1cca523c-5be9-4366-a8f9-66b97f298912",
      "cw-1d8f38ad-406c-4475-835a-942e76b5c5ef"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-bb571fe7-410f-45a4-917e-2a8deb595279",
    "manifestId": "https://dam.iuav.it/iuav/containers/AMjq8De/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-1d8f38ad-406c-4475-835a-942e76b5c5ef"
  }
}