Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/66355",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-8dd9bbb1-78a6-4acf-a8e8-d88f0f0c580f",
      "cw-0e65fe5d-008d-4487-88c6-863ecbbb589d"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-60a8aa03-d9ac-4635-9e29-e9c6746b2299",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/66355",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-0e65fe5d-008d-4487-88c6-863ecbbb589d"
  }
}