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

{
  "manifest": {
    "error": "SyntaxError: Unexpected token 'T', \"The websit\"... is not valid JSON",
    "id": "/node/4662/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-2bea1d9d-8e69-4b72-b9d3-af4a9020e780",
      "cw-74b31676-d2d1-42ab-bbb3-4db9f9435464"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-a9424f56-aff5-4d5d-81ed-8ff8657db724",
    "manifestId": "/node/4662/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-74b31676-d2d1-42ab-bbb3-4db9f9435464",
    "thumbnailNavigationPosition": "far-bottom"
  }
}