Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/GAmrPje/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-7907a4c7-4043-4dcd-a119-d5c39c43b33b",
      "cw-6c1419e2-4b47-4dc1-823e-29859e2b48ef"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-22eaadc6-9c5d-49be-b097-4abcc4c283b7",
    "manifestId": "https://dam.iuav.it/iuav/containers/GAmrPje/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-6c1419e2-4b47-4dc1-823e-29859e2b48ef"
  }
}