Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/orb/4121500",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-4f02ac38-6cb2-4b13-8e29-9bf95c0caf91",
      "cw-a7557624-696a-4e52-89ad-b3a7f7bf706f"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-d0ecc6c5-5b9c-46b5-be93-0ccf34b14500",
    "manifestId": "https://manifests.collections.yale.edu/ycba/orb/4121500",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-a7557624-696a-4e52-89ad-b3a7f7bf706f"
  }
}