TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://www.fina.gov.pl/manifest/pejzaz_horyzontalny_1_manifest.json",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-8e871e21-9685-4c58-9fd4-d1a598ffcf60",
      "cw-dc0da918-eca1-4177-9e00-f051f6a68546"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-76f70068-e94f-487f-929b-fb1c8eb25cee",
    "manifestId": "https://www.fina.gov.pl/manifest/pejzaz_horyzontalny_1_manifest.json",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-dc0da918-eca1-4177-9e00-f051f6a68546",
    "view": "single"
  }
}