Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/AB0yLEZ/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-315abb65-e815-4f3d-8554-d1825778cf1d",
      "cw-90bdcee5-04e1-47ea-a66d-413f09c0ecde"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-b55db177-bbca-4d46-9346-3e7752d5006a",
    "manifestId": "https://dam.iuav.it/iuav/containers/AB0yLEZ/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-90bdcee5-04e1-47ea-a66d-413f09c0ecde"
  }
}