Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/66286",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-97cc2cae-67ed-4823-be09-05ca2b036bca",
      "cw-841457f3-1187-4168-b08e-801616928ce3"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-00fddcba-f146-426f-af42-321ce08e8277",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/66286",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-841457f3-1187-4168-b08e-801616928ce3"
  }
}