Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/orb/4808421",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-6ec0d975-4205-4b42-8130-fbd1b2506294",
      "cw-5fa90e30-c2df-454d-ac44-a5e15ef25040"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-1d60c81d-7889-4def-8b09-d27f754732f8",
    "manifestId": "https://manifests.collections.yale.edu/ycba/orb/4808421",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-5fa90e30-c2df-454d-ac44-a5e15ef25040"
  }
}