Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/v2DE8xe/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-7ca7e6d3-332d-480a-94db-65a2cf6d7ddf",
      "cw-3909d12a-3d59-4601-949a-b31c6b155ce6"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-bb7746ae-ee9b-40be-b592-0169b1d12137",
    "manifestId": "https://dam.iuav.it/iuav/containers/v2DE8xe/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-3909d12a-3d59-4601-949a-b31c6b155ce6"
  }
}