Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/AJKqmxe/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-dea92aa2-3f10-478c-be79-3e36c18fc52d",
      "cw-54a896e4-6e32-49c2-858a-1e0f19a4fbbd"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-6db0d90f-62f2-455f-a446-99c8bd7dea4a",
    "manifestId": "https://dam.iuav.it/iuav/containers/AJKqmxe/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-54a896e4-6e32-49c2-858a-1e0f19a4fbbd"
  }
}