Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/XeWKoqe/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-e7b14b24-896d-48d6-bd59-ba6b4f7f2491",
      "cw-63da18ce-0840-4246-a470-c29466925733"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-59262c88-e1ea-438f-a219-5e03b7e90de1",
    "manifestId": "https://dam.iuav.it/iuav/containers/XeWKoqe/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-63da18ce-0840-4246-a470-c29466925733"
  }
}