Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/2456",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-b8b05b88-e9e2-48cc-9788-c032bb23357a",
      "cw-315bf312-a472-41c0-87d9-3531530a8480"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-beb83287-c3af-4c35-a993-e9a990d9a279",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/2456",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-315bf312-a472-41c0-87d9-3531530a8480"
  }
}