TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://www.fina.gov.pl/manifest/P14050-1-B.json",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-d98971be-de2c-441a-afad-aa90090acf8b",
      "cw-683e6831-6079-4737-8891-77de81c611f2"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-662b3814-6a63-4b19-9d73-91efca89883d",
    "manifestId": "https://www.fina.gov.pl/manifest/P14050-1-B.json",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-683e6831-6079-4737-8891-77de81c611f2",
    "view": "single"
  }
}