Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/39740",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-a2debb25-e2d7-4def-b44d-700d17a2efa2",
      "cw-231d751d-bc2c-4e7a-b6bf-cb9210af7784"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-b1795e35-ec40-4b8d-9795-ae74fd489f57",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/39740",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-231d751d-bc2c-4e7a-b6bf-cb9210af7784"
  }
}