Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/Am6Pkme/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-8761b52f-1283-459a-94a2-8aacdbcdab19",
      "cw-c82bf9cc-05d2-4171-94a4-0c31bdce327d"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-59be0909-cea8-4310-90e4-c55106dcf2d0",
    "manifestId": "https://dam.iuav.it/iuav/containers/Am6Pkme/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-c82bf9cc-05d2-4171-94a4-0c31bdce327d"
  }
}