Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/53200",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-450ffedd-4b05-4a3e-84e2-0ca575f68b71",
      "cw-5fc10617-4fc9-44c9-8e0e-a330f4a34f7b"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-7e224971-97dd-453a-875f-4e6476784a79",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/53200",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-5fc10617-4fc9-44c9-8e0e-a330f4a34f7b"
  }
}