Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/orb/4288420",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-9df737d2-4375-4ad3-94b7-df146b0a48a8",
      "cw-e42deaf5-2fbd-4779-ad3d-35db85fd8284"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-b66881c9-869c-47ef-8418-e0bff21774f6",
    "manifestId": "https://manifests.collections.yale.edu/ycba/orb/4288420",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-e42deaf5-2fbd-4779-ad3d-35db85fd8284"
  }
}