Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/71271",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-efa7a84b-d493-4202-b6ff-f228f1e73c6d",
      "cw-41951a8c-2d01-4798-937b-fc1d3f388fb1"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-426b15e9-d87f-4197-9af8-5c79429eb136",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/71271",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-41951a8c-2d01-4798-937b-fc1d3f388fb1"
  }
}