Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://dam.iuav.it/iuav/containers/nv79pPe/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-e28ce956-6794-4e63-98c6-d5e46568717d",
      "cw-ff5cd1ed-f741-4be2-90db-c16eaa4ed4d8"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-36f87b24-753e-495d-9791-269d15c0d929",
    "manifestId": "https://dam.iuav.it/iuav/containers/nv79pPe/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-ff5cd1ed-f741-4be2-90db-c16eaa4ed4d8"
  }
}