Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/52027",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-7ce76ab8-7b1d-472b-b6bb-2ef4f5117ab9",
      "cw-610b4ff7-7a1a-412b-b52d-87b8114dc8c8"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-f1cc5476-e8da-4226-b06a-6507b8507daa",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/52027",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-610b4ff7-7a1a-412b-b52d-87b8114dc8c8"
  }
}