Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/27455",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-65141bf4-6533-4ea4-9a06-840d8e2277a8",
      "cw-c6c4db10-3dbf-445b-a78f-d70e0aea667a"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-960e1d51-c0f4-4c6c-a741-8eca690cfa13",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/27455",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-c6c4db10-3dbf-445b-a78f-d70e0aea667a"
  }
}