Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/v2DoLpe/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-857876aa-b2dd-46e0-a6f3-9e542290ac9e",
      "cw-0b34fb47-0d82-4019-af51-4d031ca24f06"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-3de0390c-366b-49d8-8fb5-c04c213dd0b4",
    "manifestId": "https://dam.iuav.it/iuav/containers/v2DoLpe/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-0b34fb47-0d82-4019-af51-4d031ca24f06"
  }
}