Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/2AKJX7v/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-08cb28ca-7edf-47a7-b39e-d32bb148df70",
      "cw-c0e055b1-335c-4531-bb6a-7a39e947d2aa"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-f6f2d0b5-58f4-4b7b-9e44-adc6bc74326b",
    "manifestId": "https://dam.iuav.it/iuav/containers/2AKJX7v/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-c0e055b1-335c-4531-bb6a-7a39e947d2aa"
  }
}