Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/68917",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-4c31c3e3-a865-47a3-b40e-b9f613f2b664",
      "cw-2799802f-d327-434d-84f8-7ed01c0eb6f4"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-16bc04a7-929b-406c-ad9f-d43aec63fa5e",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/68917",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-2799802f-d327-434d-84f8-7ed01c0eb6f4"
  }
}