Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/31537",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-a70df5d0-d02a-4d3c-9e9c-8aa7002fd921",
      "cw-400c2694-83c1-4f7a-8901-1bd58de1b91a"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-0730a7ab-c2c0-4f44-9a55-0cd97f83e7f7",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/31537",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-400c2694-83c1-4f7a-8901-1bd58de1b91a"
  }
}