Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/9ZNmQme/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-f0e327a5-a6fd-47f7-9386-29210859295b",
      "cw-9baf3f70-54ea-4714-85af-8681d2f65076"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-bd1aa7b7-a7bd-4753-ac33-bd1dff83d52a",
    "manifestId": "https://dam.iuav.it/iuav/containers/9ZNmQme/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-9baf3f70-54ea-4714-85af-8681d2f65076"
  }
}