Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/orb/578877",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-c93506e1-128d-4c4d-a206-d1c2f0ae0a0d",
      "cw-53dd8464-ad2a-4117-8895-2a981f1eaa0e"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-5e135db4-0964-4c4a-b146-c376246da8f6",
    "manifestId": "https://manifests.collections.yale.edu/ycba/orb/578877",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-53dd8464-ad2a-4117-8895-2a981f1eaa0e"
  }
}