Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/eg8XazZ/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-91cd551e-9486-44ac-81f3-273f2781158e",
      "cw-c14d12e2-75f8-4e99-ac2e-f84301458aa2"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-e08fcd41-f909-42af-ae60-d4b7acafdfa9",
    "manifestId": "https://dam.iuav.it/iuav/containers/eg8XazZ/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-c14d12e2-75f8-4e99-ac2e-f84301458aa2"
  }
}