Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/15253",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-8c7e6421-6a7a-489c-ac60-584c3a1117ca",
      "cw-1ecab0bf-e048-401e-a215-3525e682ddec"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-3953d546-a1b8-4cdc-ade1-cc09ab1b379f",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/15253",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-1ecab0bf-e048-401e-a215-3525e682ddec"
  }
}