Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/54938",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-af21d236-90ff-4115-986c-a4b1f782a66e",
      "cw-e67b727f-25e6-4629-a493-092b3c01b000"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-a0dbbf80-63ee-4a26-9021-fd83de5f14db",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/54938",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-e67b727f-25e6-4629-a493-092b3c01b000"
  }
}