TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://www.fina.gov.pl/manifest/ostatni_prom__scenar_3_manifest.json",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-52b7176f-a09a-4b95-b882-04b2e1917909",
      "cw-197723fc-a6f1-4009-95e5-482e941e9efb"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-e0865627-6aed-4c64-b15d-a3b1c67e8d06",
    "manifestId": "https://www.fina.gov.pl/manifest/ostatni_prom__scenar_3_manifest.json",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-197723fc-a6f1-4009-95e5-482e941e9efb",
    "view": "single"
  }
}