Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/AKKll7A/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-3cfb5bfc-46f0-4bf6-bf48-68e4318a54b7",
      "cw-4740ef05-e07a-47fa-ac95-dbb788963e27"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-039ef399-426e-4abf-864e-d97841d4db70",
    "manifestId": "https://dam.iuav.it/iuav/containers/AKKll7A/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-4740ef05-e07a-47fa-ac95-dbb788963e27"
  }
}