Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/kv4BKWe/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-ff112bb1-658c-4110-88b0-927ef520cb6d",
      "cw-9ca0826f-fbe4-452d-a174-3b062749b05b"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-2aa44bec-6488-4419-ae8a-478578cf37f2",
    "manifestId": "https://dam.iuav.it/iuav/containers/kv4BKWe/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-9ca0826f-fbe4-452d-a174-3b062749b05b"
  }
}