Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/73642",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-5d8a698c-5064-41e7-b1b6-7db5bca8ef76",
      "cw-c539a1b6-0675-4bf2-b001-eac57f85607f"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-aef7e391-246d-4b10-8ea8-b1828a30906c",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/73642",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-c539a1b6-0675-4bf2-b001-eac57f85607f"
  }
}