Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/31452",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-b71bded7-0f38-45bc-a6a0-de5bb6c10c57",
      "cw-210652a9-d3b6-471e-a65a-808a41d183fa"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-d9838891-63d5-442f-8036-1f02e4e97e46",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/31452",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-210652a9-d3b6-471e-a65a-808a41d183fa"
  }
}