Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/52442",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-de140a2d-ca07-4750-8163-26ba61b5b4b5",
      "cw-d66a62b9-b44a-4981-8d83-fc3c1e5a6ee0"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-69336d06-cad7-44e6-ba90-4d6e27a115bf",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/52442",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-d66a62b9-b44a-4981-8d83-fc3c1e5a6ee0"
  }
}