Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/54250",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-346034fd-4a83-46e3-ad0b-7bc73631c2b7",
      "cw-43f5dd78-55c3-4459-abaf-951040944e39"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-0fe384c0-984d-4167-a01f-08b650d7d1d5",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/54250",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-43f5dd78-55c3-4459-abaf-951040944e39"
  }
}