Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/Pe1XLEA/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-d73e2f49-8f05-48b1-a8ec-73ae64ee06af",
      "cw-131161d0-a397-4fe2-a8e3-015b2947d3c7"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-15156d5e-c835-41c6-93dd-6c34e198904d",
    "manifestId": "https://dam.iuav.it/iuav/containers/Pe1XLEA/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-131161d0-a397-4fe2-a8e3-015b2947d3c7"
  }
}