Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/orb/818772",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-55a29357-7a51-4e6c-8527-2b87525ca335",
      "cw-aaca5d9e-e8f1-4c2a-8e7b-3948f046d6cf"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-25a7d6dd-482b-4574-a168-efa170faa219",
    "manifestId": "https://manifests.collections.yale.edu/ycba/orb/818772",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-aaca5d9e-e8f1-4c2a-8e7b-3948f046d6cf"
  }
}