Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/52872",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-80492149-1813-45be-8b78-30f0aa3495dc",
      "cw-3e854b43-195d-4453-a740-1f47904da476"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-6505675c-114b-4921-bba2-da3dfb456b67",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/52872",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-3e854b43-195d-4453-a740-1f47904da476"
  }
}