Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/AMq219A/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-a4bd795d-6b80-4724-9314-9c9f7dcac02a",
      "cw-61ddcd20-e270-4648-bc35-fab5e5b6053b"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-506ad539-2fe5-46bf-bd69-1b8c8f707965",
    "manifestId": "https://dam.iuav.it/iuav/containers/AMq219A/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-61ddcd20-e270-4648-bc35-fab5e5b6053b"
  }
}