Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/31345",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-ed48da86-ce8d-442a-a998-d6470e07e9d6",
      "cw-f60441d5-dd9e-4cab-b31a-cfcf7926ad7b"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-d4761975-85db-4809-a5ad-f063d584e71e",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/31345",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-f60441d5-dd9e-4cab-b31a-cfcf7926ad7b"
  }
}