Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/68311",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-306b76eb-e755-47db-ac9a-68711a81384b",
      "cw-dc1be50c-5660-4cba-8780-dff973585643"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-e3f81cac-2ec0-4f43-94dd-1df8f6b1dc60",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/68311",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-dc1be50c-5660-4cba-8780-dff973585643"
  }
}