Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/52323",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-80bd43d4-1993-46b4-a429-d3045ee96446",
      "cw-e60940f4-ecd6-4ec5-9617-9dd70788b722"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-5b1210c5-d857-431f-887b-c4c839f96adc",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/52323",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-e60940f4-ecd6-4ec5-9617-9dd70788b722"
  }
}