Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/61390",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-f1dabbfb-4f34-47fc-b6c4-baf7f66a5bfd",
      "cw-1cb89ecc-5d0c-4bd8-9650-dd3b46a5a086"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-a79c924e-df31-4ea8-8c81-ee38065a2477",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/61390",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-1cb89ecc-5d0c-4bd8-9650-dd3b46a5a086"
  }
}