Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/13771",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-f4b74376-64f0-46f2-9ad2-cbb4f20dd0c3",
      "cw-f9ae8bd1-447b-4102-9eed-6261fee09596"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-55fe4798-eb99-40ca-b613-f47a4bddd142",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/13771",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-f9ae8bd1-447b-4102-9eed-6261fee09596"
  }
}