Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/RABKX6e/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-fa7a012d-8488-4311-8a5a-1dce7fe588fe",
      "cw-97ff8aba-7320-417f-81c2-64840cd81c4f"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-585f335c-10bf-4002-8003-c8123e134c85",
    "manifestId": "https://dam.iuav.it/iuav/containers/RABKX6e/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-97ff8aba-7320-417f-81c2-64840cd81c4f"
  }
}