Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/9AJjMkA/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-ca534e26-5366-40e0-a3b8-b685046670fb",
      "cw-ed3b2640-a3b0-4f00-b299-80f94d8adb1e"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-8209904c-89b9-4c0d-a4fc-f99e1794c685",
    "manifestId": "https://dam.iuav.it/iuav/containers/9AJjMkA/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-ed3b2640-a3b0-4f00-b299-80f94d8adb1e"
  }
}