Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/vGE57Ye/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-25db8c0a-ad4e-4914-b496-036e46d334a4",
      "cw-6bf2002f-f01a-4fed-9e0b-ceb54aed5db0"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-490970e4-8c78-4049-84a3-1a77d58be6b6",
    "manifestId": "https://dam.iuav.it/iuav/containers/vGE57Ye/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-6bf2002f-f01a-4fed-9e0b-ceb54aed5db0"
  }
}