Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/Wvd62Xe/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-b6d8ddb8-91d2-48e7-bc5f-695f409f546c",
      "cw-ae9432b8-a9e3-4451-a96c-b8f15eebe190"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-22f56daf-866c-41c0-a947-6292b5e90683",
    "manifestId": "https://dam.iuav.it/iuav/containers/Wvd62Xe/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-ae9432b8-a9e3-4451-a96c-b8f15eebe190"
  }
}