Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/AOKRDbA/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-eafac0ed-2341-464d-afdc-1a7641895eb7",
      "cw-400011f0-1610-4da4-bc3b-4c9416565316"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-39754839-752c-414b-b3bc-6658cf682fed",
    "manifestId": "https://dam.iuav.it/iuav/containers/AOKRDbA/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-400011f0-1610-4da4-bc3b-4c9416565316"
  }
}