Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/68918",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-ddc855c4-9bbc-471c-b0ac-c3239f51447c",
      "cw-ab8ccf48-46ec-4f8f-b9db-c40bc67b3bd9"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-324f3c22-2ee1-4187-a443-24af89e77fc8",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/68918",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-ab8ccf48-46ec-4f8f-b9db-c40bc67b3bd9"
  }
}