Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/obj/4050",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-eeba83e9-f9dc-4820-bd9f-b53ea9057a28",
      "cw-2573d92d-0e71-417e-a9a1-f89995157670"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-a44a8867-9b3d-4016-819a-0d5f213ef408",
    "manifestId": "https://manifests.collections.yale.edu/ycba/obj/4050",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-2573d92d-0e71-417e-a9a1-f89995157670"
  }
}