Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/53236",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-5c907798-e7ad-4db3-b22c-4f1345fbecde",
      "cw-d4c5e106-03c3-455c-b4bd-55dce8ba7e34"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-be381596-4ca9-4282-95e0-28a60fc74bab",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/53236",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-d4c5e106-03c3-455c-b4bd-55dce8ba7e34"
  }
}