Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/73726",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-f26b23b8-60a4-4a8d-9d7e-83924e3ea2fa",
      "cw-979cdc61-e227-4e0e-8df8-ae35da9ee133"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-f24898f1-a0a9-4048-84d2-092cd1922d84",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/73726",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-979cdc61-e227-4e0e-8df8-ae35da9ee133"
  }
}