Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/75563",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-feba3cb0-84e3-4a79-96a7-af9fa8ca2cbb",
      "cw-1e30ca5a-3998-458b-a337-d76e5af54521"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-00fdfc1d-b436-442f-9ee7-f20f35432c18",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/75563",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-1e30ca5a-3998-458b-a337-d76e5af54521"
  }
}