Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/orb/578977",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-3c0a8164-372a-4639-8763-05c59e8bd5e7",
      "cw-de810a15-37d9-4e13-9edc-de452b02cf8f"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-9d17ca39-8a5c-4d9a-b5bb-4fda5da6a225",
    "manifestId": "https://manifests.collections.yale.edu/ycba/orb/578977",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-de810a15-37d9-4e13-9edc-de452b02cf8f"
  }
}