Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/v68yn1e/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-400b1d2a-894a-431a-9c07-091ccd06d718",
      "cw-6338e3b8-3a36-46d5-98bf-e4f5c673d4fe"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-de16afb3-010d-4034-8850-039ceeaeed81",
    "manifestId": "https://dam.iuav.it/iuav/containers/v68yn1e/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-6338e3b8-3a36-46d5-98bf-e4f5c673d4fe"
  }
}