Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/orb/20142",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-702a5650-ec68-43f0-b759-026d8bdbbaae",
      "cw-f55c229d-9808-4e98-b15a-c0382ee385ad"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-aec233f9-7828-4540-9016-b4c7d95eb294",
    "manifestId": "https://manifests.collections.yale.edu/ycba/orb/20142",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-f55c229d-9808-4e98-b15a-c0382ee385ad"
  }
}