Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/Lvxpjzv/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-ae304473-2d22-46d4-bdd6-d1a57ee364b7",
      "cw-f87e1d2a-3d78-4eeb-9107-17a66ce4a5a3"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-476bdecc-11a1-467f-8b3c-967ad6434d7e",
    "manifestId": "https://dam.iuav.it/iuav/containers/Lvxpjzv/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-f87e1d2a-3d78-4eeb-9107-17a66ce4a5a3"
  }
}