Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/70867",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-297d2bad-c508-4f13-8738-bf9d5a78d627",
      "cw-c225cc68-7e8b-4b6c-a29f-1120b2819368"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-861ca952-5862-476e-b4de-08802911e7c3",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/70867",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-c225cc68-7e8b-4b6c-a29f-1120b2819368"
  }
}