Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/9AJG1De/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-0a3f19e5-64e4-48b1-a9dc-733ee1fcece4",
      "cw-9f512b3e-172b-42fc-b1fe-67b9e414f604"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-bba0b74e-af6c-43e8-93eb-5a66f3e702d3",
    "manifestId": "https://dam.iuav.it/iuav/containers/9AJG1De/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-9f512b3e-172b-42fc-b1fe-67b9e414f604"
  }
}