Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/BeyjomZ/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-04a3e670-9e48-41fd-8de8-0d9ad8c66886",
      "cw-84ce822f-96b4-465a-b4ce-4d8730e3c431"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-82ab1514-beec-47a8-a035-be9cfbc4fcbd",
    "manifestId": "https://dam.iuav.it/iuav/containers/BeyjomZ/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-84ce822f-96b4-465a-b4ce-4d8730e3c431"
  }
}