Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/BeyjMkZ/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-4b585196-3bf6-46a6-8176-477638899bd2",
      "cw-f1beff50-05bc-4d7b-baca-d83db5874407"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-8ca5703a-4c8a-43ae-a203-c72a86b371cf",
    "manifestId": "https://dam.iuav.it/iuav/containers/BeyjMkZ/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-f1beff50-05bc-4d7b-baca-d83db5874407"
  }
}