Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/AVWBoje/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-440487f5-7f67-456a-8eb7-b73de552b698",
      "cw-6ad19d88-df81-40d9-99d5-dab7c028f195"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-1d55d883-233f-48a8-93ba-f34b514a7fe3",
    "manifestId": "https://dam.iuav.it/iuav/containers/AVWBoje/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-6ad19d88-df81-40d9-99d5-dab7c028f195"
  }
}