Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/4419",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-b502ce73-4ff9-464c-bb90-86df448734d8",
      "cw-3532478f-e8db-40bd-b471-5abfba393485"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-decf5e9d-f21c-4fdd-8ce1-19c5a833321f",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/4419",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-3532478f-e8db-40bd-b471-5abfba393485"
  }
}