Mirador viewer

SyntaxError: Unexpected end of JSON input

{
  "manifest": {
    "error": "SyntaxError: Unexpected end of JSON input",
    "id": "https://manifests.collections.yale.edu/ycba/orb/921412",
    "isFetching": false
  },
  "window": {
    "canvasId": null,
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-5e17a799-5a1c-43e3-be96-30d43067b966",
      "cw-3b481777-0de9-460a-bb1c-b4377a8fc1a0"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-8535fae4-3991-4110-bbcd-cae4fc8ec41d",
    "manifestId": "https://manifests.collections.yale.edu/ycba/orb/921412",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-3b481777-0de9-460a-bb1c-b4377a8fc1a0"
  }
}