Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/AwqMPnZ/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-4714b8e9-adba-4977-bd24-fc7853c4f975",
      "cw-cdb2a88a-fe28-4737-9bc3-95de9fcbd6ce"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-3f07d2fe-1e96-4499-8808-d72219f525ee",
    "manifestId": "https://dam.iuav.it/iuav/containers/AwqMPnZ/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-cdb2a88a-fe28-4737-9bc3-95de9fcbd6ce"
  }
}