Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/67644",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-c7eded50-3094-4f70-a4e4-25aa2829464a",
      "cw-a67ec170-18b1-4e12-913c-d0f1bd1d1892"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-a5270b82-c9e6-4119-aa64-3812e4049f23",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/67644",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-a67ec170-18b1-4e12-913c-d0f1bd1d1892"
  }
}