Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/orb/3981520",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-7c286cca-fd54-4863-b01c-9d319601542c",
      "cw-83221d22-e78b-4bde-bb7e-5ed60034c7c0"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-10170c3f-4006-4b84-a834-7ec70410c1da",
    "manifestId": "https://manifests.collections.yale.edu/ycba/orb/3981520",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-83221d22-e78b-4bde-bb7e-5ed60034c7c0"
  }
}