Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/orb/6668920",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-60236f0d-e085-426e-bcd9-d84c124fcafe",
      "cw-4d9329da-8aa9-482d-9427-08470242724f"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-875c2c4a-d18a-49b3-8ec0-f45fb5c8ae12",
    "manifestId": "https://manifests.collections.yale.edu/ycba/orb/6668920",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-4d9329da-8aa9-482d-9427-08470242724f"
  }
}