Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/orb/578775",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-cb870634-f64c-4f03-8f8a-1ee32311e964",
      "cw-afb3ba74-4420-4d13-8c5b-f34a3377d044"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-2568539c-7d86-4ed3-92c9-2157b87a9bbd",
    "manifestId": "https://manifests.collections.yale.edu/ycba/orb/578775",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-afb3ba74-4420-4d13-8c5b-f34a3377d044"
  }
}