Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/XeWRyGA/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-0be3cf8a-89a0-41f7-a421-7ea000346e08",
      "cw-87d7c88d-508b-4449-89f2-17020ba2ab4d"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-d5eb3881-14ad-4acd-99b3-bff549604000",
    "manifestId": "https://dam.iuav.it/iuav/containers/XeWRyGA/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-87d7c88d-508b-4449-89f2-17020ba2ab4d"
  }
}