Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/AJKGPde/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-56a52a6d-94c6-4ab2-b48f-341591e5d498",
      "cw-14f8cb28-2a14-4566-aef8-f469650c21a8"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-87dee66e-8ed3-4555-87cb-5930ddacc4ba",
    "manifestId": "https://dam.iuav.it/iuav/containers/AJKGPde/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-14f8cb28-2a14-4566-aef8-f469650c21a8"
  }
}