Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/AVW0G5e/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-b200cd9a-2715-4ac2-aecd-d5394503167c",
      "cw-7aac2a9a-4c29-41e6-aba5-c35330c7330c"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-24978a2d-c73e-4c2c-af02-166bb1a6e94b",
    "manifestId": "https://dam.iuav.it/iuav/containers/AVW0G5e/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-7aac2a9a-4c29-41e6-aba5-c35330c7330c"
  }
}