Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/AwqMPnZ/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-6d92c63b-340a-4615-943a-2955b466aca7",
      "cw-4bac8df1-0a13-4921-8f72-58a48090710b"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-9d660e97-edd9-4603-b52b-f7acfc2051a4",
    "manifestId": "https://dam.iuav.it/iuav/containers/AwqMPnZ/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-4bac8df1-0a13-4921-8f72-58a48090710b"
  }
}