SyntaxError: Unexpected token 'T', "The websit"... is not valid JSON

{
  "manifest": {
    "error": "SyntaxError: Unexpected token 'T', \"The websit\"... is not valid JSON",
    "id": "/node/5812/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-71147cc1-885d-4bc8-80a5-a8698c21fd91",
      "cw-8b279b50-de36-4d87-a687-5afaac4cb853"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-11f3cc99-af16-4d8c-83a1-9d343a653e1f",
    "manifestId": "/node/5812/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-8b279b50-de36-4d87-a687-5afaac4cb853",
    "thumbnailNavigationPosition": "far-bottom"
  }
}