Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/54226",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-7581ff61-6e93-4559-8fdd-05a6c6c24d30",
      "cw-7f2363a8-e6ca-409c-bf17-566c326cd4a1"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-d74cc49d-7aed-4264-ba9c-50563acf0102",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/54226",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-7f2363a8-e6ca-409c-bf17-566c326cd4a1"
  }
}