Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/orb/4939478",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-afcf0939-4690-423d-87ae-0799480448be",
      "cw-a86d7fc2-6551-4559-929c-f6dc4779a2c4"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-bdfe5ae7-c8f9-42ce-be5d-1e9ec26cdcaf",
    "manifestId": "https://manifests.collections.yale.edu/ycba/orb/4939478",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-a86d7fc2-6551-4559-929c-f6dc4779a2c4"
  }
}