Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/vxB5wze/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-fd1bf833-678b-481d-b1fc-d0b04de50a77",
      "cw-dc7670b1-a744-4847-a09b-13a8954b4e7e"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-13f550a2-117a-4890-8685-6ce78ac9fe33",
    "manifestId": "https://dam.iuav.it/iuav/containers/vxB5wze/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-dc7670b1-a744-4847-a09b-13a8954b4e7e"
  }
}