Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/v2534QZ/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-74e8b71c-3840-40dd-a3f3-03b6381931e4",
      "cw-8a90f690-b9fe-4126-983c-240b82bb656c"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-94ac985c-026e-4389-9aac-85ea5eb4c1d8",
    "manifestId": "https://dam.iuav.it/iuav/containers/v2534QZ/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-8a90f690-b9fe-4126-983c-240b82bb656c"
  }
}