Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/orb/29949",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-b7f96505-c2a1-407c-a278-4e9a9044be84",
      "cw-9acd4f1e-ecc8-4310-b2af-c8f08dfba82f"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-6204236e-76f9-4c65-b1d1-1df68b4b6c2b",
    "manifestId": "https://manifests.collections.yale.edu/ycba/orb/29949",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-9acd4f1e-ecc8-4310-b2af-c8f08dfba82f"
  }
}