TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://www.fina.gov.pl/manifest/2BHsFmFI_manifest.json",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-fdd15541-d88b-4bfd-941f-9d32b1be52c8",
      "cw-364ea5e0-040a-4509-9918-174d08999371"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-00c1c8d3-c99a-4b39-989e-84f354cf7636",
    "manifestId": "https://www.fina.gov.pl/manifest/2BHsFmFI_manifest.json",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-364ea5e0-040a-4509-9918-174d08999371",
    "view": "single"
  }
}