TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://www.fina.gov.pl/manifest/aBdd3Iyr_manifest.json",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-b9c35823-a778-4f3a-9bd5-372fe4be0658",
      "cw-2827a7fe-42ed-4e15-a42a-1dc96624072a"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-8556283a-ba66-4c33-a3c5-c98a3d3872e2",
    "manifestId": "https://www.fina.gov.pl/manifest/aBdd3Iyr_manifest.json",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-2827a7fe-42ed-4e15-a42a-1dc96624072a",
    "view": "single"
  }
}