Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/dAMqkRA/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-f67f56b8-34c2-4b72-a139-ca2b55710fd9",
      "cw-de5755d1-0717-4b0f-8c84-7b5e30f8b51b"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-8fc37a19-c2ae-47f2-89f1-6c0754179aeb",
    "manifestId": "https://dam.iuav.it/iuav/containers/dAMqkRA/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-de5755d1-0717-4b0f-8c84-7b5e30f8b51b"
  }
}