Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/AkrpWjv/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-6b033082-7fb4-4b40-b012-3de5ca0f8ba6",
      "cw-a0c1d0e0-db4e-4a38-bc95-7882ac67686d"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-e6d2955c-ae68-4bb4-8d82-3f1c53caa3e9",
    "manifestId": "https://dam.iuav.it/iuav/containers/AkrpWjv/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-a0c1d0e0-db4e-4a38-bc95-7882ac67686d"
  }
}