Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/69315",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-6a375ba1-e2a2-4100-a5e0-f6244254c1d6",
      "cw-33172e5c-9330-4634-8c39-b9a686503b73"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-708df045-a37b-4ac8-ad06-077dae5ccfb9",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/69315",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-33172e5c-9330-4634-8c39-b9a686503b73"
  }
}