Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/68120",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-b817fe08-e317-4634-904d-e5ada8b61919",
      "cw-dad31044-4502-420d-8271-0bfda9abac7b"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-6b30e484-b67d-4e81-aea9-872370b9c543",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/68120",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-dad31044-4502-420d-8271-0bfda9abac7b"
  }
}