Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/68039",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-e4f804bd-98f9-4c0e-9f55-e40f25124d44",
      "cw-952d2425-2b9f-4679-864c-07ad297d522f"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-78054eec-9dc9-41a1-b22f-2371de367cd6",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/68039",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-952d2425-2b9f-4679-864c-07ad297d522f"
  }
}