Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/2454",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-aafb56df-8791-4032-8d3d-3322d51d7abd",
      "cw-4a91b743-6b77-4526-9fe4-b6015eba43a9"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-f4b77323-dd4b-4b5c-92fe-7ee9cf739dda",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/2454",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-4a91b743-6b77-4526-9fe4-b6015eba43a9"
  }
}