Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/57794",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-28af6bcb-57c9-45f6-bf47-6cbcd865c8b6",
      "cw-46c9e0df-97af-42af-879d-c561a99c625f"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-983bfab9-1c16-4a7b-bcab-44df9d8133be",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/57794",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-46c9e0df-97af-42af-879d-c561a99c625f"
  }
}