Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/zegKmMe/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-2ece896a-24ce-4005-8106-b29e80568821",
      "cw-845cb10d-12fa-42d5-866e-3fbb2072b7f8"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-1937a10c-1f84-4ffb-8a52-b04381d9d8d8",
    "manifestId": "https://dam.iuav.it/iuav/containers/zegKmMe/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-845cb10d-12fa-42d5-866e-3fbb2072b7f8"
  }
}