Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/vGEWgoe/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-14a30934-e301-4232-b7d1-ff555a9eecea",
      "cw-9b06bc15-869c-4608-9c15-74aec9574921"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-7835db4c-bdae-4ef0-ac99-86b0edccedc0",
    "manifestId": "https://dam.iuav.it/iuav/containers/vGEWgoe/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-9b06bc15-869c-4608-9c15-74aec9574921"
  }
}