Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/vLEaNoA/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-1dabe028-67b3-42a0-a894-9a63efefdaa7",
      "cw-e019f50a-ce5d-4212-97eb-a520038f451c"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-55cb59c5-93f8-45ee-acdb-60bd3a6d98c4",
    "manifestId": "https://dam.iuav.it/iuav/containers/vLEaNoA/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-e019f50a-ce5d-4212-97eb-a520038f451c"
  }
}