Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/orb/12435820",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-84d79798-e1d2-4251-90b3-6cfe0233869d",
      "cw-6553d57b-caaa-496f-a5f2-800af12ae973"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-cc7645b8-b71f-4167-96d5-b5d511a1fa33",
    "manifestId": "https://manifests.collections.yale.edu/ycba/orb/12435820",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-6553d57b-caaa-496f-a5f2-800af12ae973"
  }
}