Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/pvlXEyv/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-128c6de2-4964-47ba-b56b-39b2fc406d3d",
      "cw-8595a03b-9986-474d-8029-4e73281b82e5"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-95d0d19f-239b-4257-b628-a16520d48b2b",
    "manifestId": "https://dam.iuav.it/iuav/containers/pvlXEyv/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-8595a03b-9986-474d-8029-4e73281b82e5"
  }
}