Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/30511",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-2d925cc7-4934-4d01-bc8a-f5d4b2dcfac1",
      "cw-8e2a4338-14eb-4202-b663-9acbb4df7b2d"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-a70afaff-9ec2-423c-9178-b0c90de8848c",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/30511",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-8e2a4338-14eb-4202-b663-9acbb4df7b2d"
  }
}